Pitcrewing 

When a group of 2-5 men descend onto a willing female participant, sexually, as if in a race car meeting scenario, to take turn pleasuring or being pleasured by the woman, who is usually on her back, but can also be seated/kneeling. The scene depicts very similarly to what the pit crew paddocks are like during a race meeting, each guy taking his tool to the action.

She was enjoying some pitcrewing for her special celebration, as a new experience. It was very hot.

Pitcrewing by Echo_Bravo_ September 23, 2015

Pit-crewing

When you have to fix, re-lick/seal, adjust, or roll a blunt while it's still burning in order to keep the cigarillo intact for the best hits.

In NASCAR when a racecar needs to be fixed, its tires replaced, or its gas refilled, the pit crew makes all those adjustments while the race is still going on. This helps the driver finish in the best way possible like the blunt.

Demarcus: Yo man this blunt is starting to fall apart.

Simon: I know, start pit-crewing that shit!

Pit-crewing by Davetastic the Great April 29, 2017