打屁股

to spank sb's bottom

dozen (loanword)

to beat / to strike / to hit / to break / to type / to mix up / to build / to fight / to fetch / to make / to tie up / to issue / to shoot / to calculate / to play (a game) / since / from

to chat idly

fart / flatulence / nonsense / (usu. in the negative) what / (not) a damn thing

buttocks / bottom / butt / back part

thigh / part of a whole / portion of a sum / (stock) share / strand of a thread / low-level administrative unit, translated as "section" or "department" etc, ranked below 科[ke1] / classifier for long winding things like ropes, rivers etc / classifier for smoke, smells etc: thread, puff, whiff / classifier for bands of people, gangs etc / classifier for sudden forceful actions