laugh like a drain
US /læf laɪk ə dreɪn/
UK /læf laɪk ə dreɪn/

1.
rir descontroladamente, rir às gargalhadas
to laugh very loudly and uncontrollably
:
•
When he told the joke, she started to laugh like a drain.
Quando ele contou a piada, ela começou a rir descontroladamente.
•
The comedian had the whole audience laughing like a drain.
O comediante fez toda a plateia rir descontroladamente.