Verb
reap what one sows (third-person singular simple present reaps what one sows, present participle reaping what one sows, simple past reaped what one sowed or reaped what one had sown, past participle reaped what one has sown or reaped what one had sown)
(intransitive, idiomatic) To receive as a return or reward in the same measure as one's exertions or intentions, in a good or a bad sense; to receive justice or one's just deserts.