We found 2 dictionaries that define the word let them have it:

General (2 matching dictionaries)

1. let them have it: Merriam-Webster
2. let them have it: Wiktionary

Opposite: withhold, hold back, restrain, keep from ▸ Words similar to let them have it ▸ Usage examples for let them have it ▸ Idioms related to let them have it ▸ Wikipedia articles (New!) ▸ Words that often appear near let them have it ▸ Rhymes of let them have it ▸ Invented words related to let them have it