What is Shimming?
1.
To abstain from the use of drugs or alcohol.
"Lindsay Lohan just got out of rehab and now she's totally shimming."
See
2.
Act of sticking one or more fingers in a woman's pussy or ass while fucking them in order to make it tighter
So I am
clipping this slut from the club and do some shimming because that pussy was so well worn...
Could not believe it - put my dick in her ass and she didn't even blink - had to do some shimming to get her to squeal...