Definition
To be in a bad mood or display irritability; often characterized by sulking or being easily annoyed.
情绪低落；发脾气
She's had a strop on all day; she's been moping around.
她整天都在发脾气；她一直在闷闷不乐。
He's having a strop on because he didn't get what he wanted.
他因为没有得到他想要的东西而在发脾气。
Just ignore him, he's just having a strop on, he'll be over it soon.
别理他，他只是在发脾气，很快就会没事的。