нескл.;
предик.;
разг. это (просто) умора ≈ it's enough to make one split one's sides (with laughter) вот умора-то! ≈ it's killing!, it's incredibly funny!
ж. в знач. сказ. разг. it`s killing, it`s incredibly funny.
Большой англо-русский и русско-английский словарь. 2001.