let one's hair down
вести себя свободно, отдыхать и веселиться
After the dance, the college girls let their hair down and compared dates.
Другие идиомы:
- let (something) slip by
- let one's emotions show
- let (something) off
- neither hide nor hair (of someone or something)
- let well enough alone
- split hairs
- let on
- let down one's hair
- let (something) slip (out)
- in one's hair
- let the chips fall where they may
- let out (someone)
- let (something) pass
- let off steam
- let out (some kind of sound)