Usually gay slang for anal intercourse, but may also include heterosexual anal intercourse. The rectum being the "box" mentioned and the speaker being the receiver of said intercouse. See pegging.
A: Yo Mike I just did an unboxing with Tracy
M: Your girlfriend? Did she use a strap-on or something?
A: It was so fucking hot bro, you should try it with your boyfriend
M: Your girlfriend? Did she use a strap-on or something?
A: It was so fucking hot bro, you should try it with your boyfriend
by igbaf February 19, 2024
The same as devirgination or defloration.
by jumbonium October 07, 2018