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injection for life

An exclamation accompanied by an index finger to upper-arm gesture that is quickly self-administered at the first sign of girl or boy "germs". Particularly popular with Australian schoolchildren throughout the 1990s.

Ironically, the injection for life never actually lasted for life, as it was said at every possible opportunity, if not several times a school day.
Jess: Ooh, David just borrowed my eraser and I think I saw him pick his nose earlier!

Stacey, Christine and Sharon: Injection for life!!
by Ginadean February 13, 2009
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tanning injections

Tanning injections refer to the injection of one of the melanotan peptides (melanotan-1 and melanotan II) to develop pigmentation in one's skin thus allowing individuals who ordinarily cannot tan or have difficulty doing so (fitzpatrick skin type I and type II, ie: redheads and gingers) to be able to do so. See: Melanotan.org
United Kingdom Jordan's (Katie Price) boyfriend was amazingly tanned from having used tanning injections.
by melanotan September 23, 2009
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SQL injection

A web hacking technique which invloves submitting information to a web script which uses SQL databases (for instance a username/password checking script) which modifies the code of the script to gain unauthorized access to anything from databases to server commands.
That website was too easy to gain admin access to. All I had to do was use SQL injection in the admin login script.
by Powersurge December 12, 2004
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Hot Beef Injection

Having sex with a girl. Coined by John Bender (Judd Nelson) in "The Breakfast Club"
C'mon, sport, level with me...you slip her the hot beef injection?
by GlockyBalboa March 1, 2011
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beef injection

A term used to describe intercourse, in which the mans "beef" is "injected" into said person's orifice.
A beef injection a day keeps the doctor away!
by [leah] December 28, 2007
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heathrow injection

A metaphor for the weight one inevitably gains when one migrates to London for an extended stay. It is attributable to the face-paced lifestyle that leads one to eating mostly take-away and fast foods.
Person 1: "I reckon i'm getting a little tubby. I think i'm developing love handles."
Person 2: "Yeah well you've been here in London for three months now. That's the heathrow injection right there. I've been here for two years now. Look at this flab on me. I slap it and it makes waves."
by SITS Industries, CEO April 8, 2006
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injective

An injection is a map f: A -> B such that
f(a)=f(b) => a=b for all a,b in A
The map f: R -> R given by f(x)=ax+b is injective.

Proof:

f(c)=f(d) <=> ac+b = ad+b <=> c=d

Q. E. D.
by qsqazxcvfrew March 29, 2018
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