打屁

打屁	dǎ pì	to chat idly
打	dá	(loanword) dozen / Taiwan pr. [da3]
打	dǎ	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
屁	pì	fart / flatulence / nonsense / (usu. in the negative) what / (not) a damn thing