tusod

Verb

 * 1) to crush or squish a louse, tick, mite, flea or nit with the nail of the thumb on a flat surface
 * 2) to crush or squish a louse, tick, mite, flea or nit between the nails of both thumbs
 * 3) to crush someone.

Usage notes

 * Used as a threat to an enemy or opponent way smaller or shorter than you.