by pavistroni June 25, 2007
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 10, 2010
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 July 12, 2013
by Curly Dino July 07, 2006
by So Mach April 28, 2006
Hey Gino, that new kid looks awfully tan. You think he is a halfsie? Antnee, you know his moms a shine, he’s a halfsie for sure.
by Joe bananas August 18, 2021
Why would you go halfsies with that halloween costume and just wear a hat? You should go all the way and wear the whole outfit.
Want to go halfsies with me and split the cost of dinner?
Want to go halfsies with me and split the cost of dinner?
by cirrus42 January 25, 2012