A relatively large amount of a powder substance, usually cocaine, that when inhaled will give the inhaler a choking sensation due particulate matter irritating air passages in the troat and lungs;
"God damn, god damn! I almost fuckin' puked off that gagger I just ripped! But I'm geeked of my ass now so its all good."
by Big Z August 15, 2004
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A massive line that goes straight down your throat and causes you to gag.
'let's toot a fat gagger.'
by cool kid September 28, 2003
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Someone (typically a woman) who strongly desires sex, is extremely horny, and appears to be willing to engage in fellatio.

When one encounters a drunken slut in a bar and you have to describe her to a mate, "she's a gagger".

or, "she's gaggin' for it".
by derhammer November 05, 2006
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Any heavy-duty pool pump used to empty swimming pools for skateboarding. The huge stream of filthy water spewing out of the end of the hose reminds skateboarders of past sexual exploits.
We had the Grand Inn pool emptied in one night with the gagger, but we only skated one hour before the cops busted us.
by rockum' bockum' December 03, 2006
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