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4.
A tank of gas that you can attach to things and pop its cap off to make it move in JBMod for HL2.
Omg I made this thing launch so high in JBMod!

I attached 10 cannisters to a buggy and made it go FLYING!!
by happyface_0/dave December 16, 2004
 
1.
An alternative word to "head", derived from the Football Factory
I'll head straight down the hospital,
~Everything alrite Fred?
Its me brother Terry, sum1's just done him round the cannister with a cricket bat
by ricky February 20, 2005
 
2.
to refer to somebodys head
look bill ive gotta go someboy's just done me little brother round the cannister with a cricket bat
by none of you business March 01, 2005
 
3.
An overused vagina used to store semen. The vagina is usually dry, either because the woman is unaroused due to sensory adaptation or because she is unable to self-lubricate.
I needed to get off and didn't know where to ejaculate, so I used my friend's grandma as a cannister.
by eDictionaryMan July 30, 2009