Most terms I have heard are rated "R" So here are a few rated pg.

"Running Fat" (Fuel to rich)
"Going to Spank him" (whatever you think it means)
"Smack Down" (Lonnie knows best)
"Bitchen run" (Great Run)
"Double breakout" Both lying about your cars performance.
"Hung Over" (hanging out in the Mopar Mafia Racing pits)
"Put a foot in it" (Mash the gas)
"One in the Bag" (First Round Winner)
"Done for the Night" (Motor Blown up)
"Check my Pants" (got sideways)
"Put Her on the Wall" (Bad News)