beat someone's brains out

== English == === Pronunciation === === Verb === beat someone's brains out (third-person singular simple present beats someone's brains out, present participle beating someone's brains out, simple past beat someone's brains out, past participle beaten someone's brains out or beat someone's brains out) (idiomatic) To beat someone very severely (especially in the head). ==== Synonyms ==== punch someone's lights out ==== See also ==== beat one's brains out