"Happy stick" is a slang term that can be used in reference to large-capacity Glockpistolmagazines containing 33 rounds of 9mm intended for use in the Glock 18 fully-automatic machine pistol. These 33-round Glock 9mm magazines fit and function in other 9mm Glock handguns and are extremely popular with shooters. A .40 S&W caliber version of the "happy stick" exists that is reported to have a capacity of 22 rounds.
by RDM1984 January 16, 2011
by Toneman November 14, 2012
A euphemism for penis in reference to a porno in which a man tricks his younger step-sister that he is her pet bunny and that she should play with his "happy stick".
Sister: What's that?
Points to his penis
Man: Oh that's my happy stick it likes it when you touch it.
Points to his penis
Man: Oh that's my happy stick it likes it when you touch it.
by Szboy May 26, 2015
by David May 05, 2004
by smartypants October 06, 2004
by Jonny Phoenix August 27, 2013
by #"!'--XxX--'!"# January 04, 2010