In stitches - смеяться (до колик)
The film was so hilarious that I was in stitches over some of the episodes.
Happen upon (someone or something) - случайно встретить найти кого-либо или что-либо
Alice happened upon a lot of things when she was cleaning the mess in the attic.
Give in to (someone or something) - уступать, сдаваться, прекращать спор
He gave in to the wish of the majority.
A peeping Tom - через-чур любопытный человек (любопытная Варвара)
Johnny was picked up by the police as a peeping Tom.
Wing it - делать всё возможное в трудной ситуации
I was not prepared to talk to the boss, but I had to wing it.