shivering timbers 

The shaking of a girl's legs when she's having an orgasm.

I'm so good I'm going to give you so many shivering timbers.

shivering timbers by jojijameson December 4, 2017

My timbers are shivering

When you are overly scared or overly anxious about something upcoming.

Ex: My timbers are shivering because I don't know if Urban Dictionary is going to accept my new definitions or not..

My timbers are shivering by chadeesa July 20, 2024