Free Dictionary of Contemporary Slang by Tony Thorne

2012.
    awkward turtle
n American
    an acknowledgment of an uncomfortable social situation, usually accompanied by a hand gesture with one hand on top of the other, palms down, with the thumbs moving in a circular motion. The term was recorded on campus in 2010.
    â€˜A.J. Clemente, a new co-anchor for NBC station KFYR in North Dakota, had a major slip-up on air Sunday evening as he made his station debut, saying “f****** s***” into a live microphone… Before going on air, the nervous newsman had tweeted: “Seeing if I am ready for anchoring… awkward turtle”.’

(Daily Mail, 22 April 2013)
    awkweird
adj American
    discomfiting. A teenage and campus term, blending awkward and weird, recorded in 2010.
    â€˜â€¦find it quite amusing when someone doesn’t know my father is dead and they feel awkweird when they find out. Sometimes I like to make them feel super-awkweird by making inappropriate jokes on the subject.’

(Posting on Tumblr website, April 2013)
    awol, A.W.O.L.
adj
    missing, not present when needed. The expression has been extended, especially by British middle-class speakers, from its original meaning in army jargon of ‘absent without leave’ to inexplicably absent, either with the implication of fleeing to avoid responsibilities, or wandering uncontrolled or running amok.
    â€˜Ollie’s gone awol again; he disappeared with a bottle and no one’s seen him for days.’

(Recorded, upper-class youth, London, 1985)
    awright!
exclamation American
    an alternative spelling of all right . With drawn-out pronunciation, this forms an exclamatory expression of appreciation, agreement or solidarity in American English.
    aws
adj American
    an abbreviated form of the fashionable slang sense of awesome , popular with college students, particularly females, since the 1990s
    axe
n
    a guitar. The word in this sense was enthusiastically adopted by white rock musicians in the late 1960s. Black blues and jazz musicians had originally applied it toany instrument (such as a saxophone) that was held in both hands and ‘wielded’. By the early 1970s the white use of the word, which had always had an element of self-consciousness, was mainly confined to rock music journalists or fans.
    aye-aye shepherd’s pie!, aye-aye Popeye!
exclamation British
    these joky expressions of agreement or compliance originated among primary and junior schoolchildren, but during the early 1990s were adopted as catchphrases by adults, particularly those working in advertising, the media and finance in London.
Compare
okey-dokey, artichokey!; oy-oy, saveloy!
    Ayrton (Senna)
n British
    a
tenner
, a £10 note. The rhyming-slang term, borrowing the name of the late Brazilian Formula One racing driver, was still in use among London students in 2004.
    I’ve only got an Ayrton left to last me the month!
    ay yo trip!
exclamation
    an exhortation or cry of solidarity used in hip hop and rap milieus
    Aztec two-step, the Aztec two-step
n
    an attack of diarrhoea, particularly one suffered while travelling abroad. The image is of the agitation caused by impending diarrhoea or, more specifically, the frantic and undignified clenched shuffle to the nearest toilet or bush. This parody of a dance title was coined by Americans who tend to suffer while on holiday in Mexico, and is a late 1970s alternative to Montezuma’s revenge or the British gyppy tummy and Delhi belly .

B
    B
n American
    friend. A term of greeting or endearment among male teenagers.
    Hey B, wassup?

‘In fact, so many terms of endearment begin with the letter B (“brother”, “bro”, “boy”, “bruv”, “breh”) that it is now used in their place, as a kind of slang shortcut. After all, nothing says “you’re one of my bestest friends” more than spending as little time as possible on greeting them.’

(“Yoofspeak”, Times Educational Supplement, 11 May