a partially erect penis that occurs typically when the owner is aroused by something they should probably not be aroused by or in other inopportune situations.
Armando is inappropriately and uncontrollably partially aroused by his room mate. He now has a halfsie.
by hardguy January 9, 2010
Get the halfsiemug. Person # 1: Hey! Where are you from?
Person # 2: I'm half British and half Indian
Person # 1: Oh so you're a halfsie? That's cool!
buy halfsie mugs & shirts
Person # 2: I'm half British and half Indian
Person # 1: Oh so you're a halfsie? That's cool!
buy halfsie mugs & shirts
by kurryma August 26, 2013
Get the halfsiemug. When you shit but only half of it comes out so you struggle hard the rest of the day until the other half finally comes out.
Convo in Taco bell bathroom
Kyle- What the fuck is taking so long
Dan- Bro i got halfsies so bad right now
Kyle- Damn that sucks your gonna struggle the rest of the day
Dan- I know thats why im trying to get it all out now!
Kyle- What the fuck is taking so long
Dan- Bro i got halfsies so bad right now
Kyle- Damn that sucks your gonna struggle the rest of the day
Dan- I know thats why im trying to get it all out now!
by ThemanThelegend September 7, 2010
Get the Halfsiesmug. by Curly Dino July 7, 2006
Get the halfsiemug. by Dushtie January 9, 2008
Get the Halfsiemug. "Dude, did you see that chick? I think she had a dick!"
"Yeah dude, Halfsie - upper half woman, bottom half dude"
"Yeah dude, Halfsie - upper half woman, bottom half dude"
by WiggityX January 27, 2009
Get the Halfsiemug. When you can't decide between two things, so you and another person (usually a friend or acquaintance) each purchase one of the desired items and you both exchange half of each item with one another.
Note: Most often done when ordering food. This way you can eat both items you want instead of ordering two meals and looking like a fat ass.
Note: Most often done when ordering food. This way you can eat both items you want instead of ordering two meals and looking like a fat ass.
Person 1: "Man, I can't decide between the teriyaki chicken or the club."
Person 2: "Yeah, me neither."
Person 1: "Double halfsies?"
Person 2: "You read my mind."
Person 2: "Yeah, me neither."
Person 1: "Double halfsies?"
Person 2: "You read my mind."
by rkitch February 11, 2013
Get the double halfsiesmug.