bögtest

Noun

 * 1)  a challenge where the goal is to rub one's skin (most often on the hand or arm) with an eraser until it breaks and starts to bleed (and, in some variations of the challenge, without crying and/or with an additional step of putting hand sanitizer, salt, or the like on the resulting wound) (with a person failing the challenge declared to be gay)

Usage notes
Long widespread in Swedish elementary schools.