A condition of tightness or numbness in the testicles that is felt after fully inserting them inside another person's anus for a prolonged period of time. The intensity and duration of buttballs is dependent on several factors, including but not limited to the size of one's testicles, blood pressure, tightness and dilation of the host's anus, and duration of insertion.

The process of searching a building for an empty bathroom. A successful bowl search typically relieves the frustration of uncomftorably defecating around others, although in less frequent cases the desire to urinate alone is a factor. Bowl searching can be done anywhere although it is most prevelant on college campuses.

Similar to "jerk" or "turd". Anatomy: combination of butt and balls.

When you are doing a skirt dirty doggy style and your balls smack too much on her ass.

When a man fully inserts his penis into the anal passage (male or female) and rest his balls on the gluteus maximus thus the formation on buttballs occurs.

The act of inserting testicles into an anus, sometimes one's own.

when pants are so tight on guy that their balls look like a butt
aka male camel toe