有口无心

to speak harshly but without any bad intent (idiom)

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

not to have / no / none / not / to lack / un- / -less

unintentionally / not in the mood to

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]