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1.
deoderant, antiperspirant, used, usually after a shower in the morning, to prevent your armpits from stinking at the end of the day
There is nothing more disgusting than a waiter who doesn't use a pit stick, reaching across your table when you are eating.
by Jaeneva January 24, 2005
 
2.
Slang for deodorant.
Glen:
Hey dude, I'm smelling like a can of garbage, can I use your pitstick before i leave?

Jordan:
Sure, whatever, just leave it in the bathroom.
by jordotech July 31, 2008
 
3.
Underarm deodorant
Man, you smell; did you use a pit-stick today?
by Keens February 10, 2004