When a man with exceptionally erect nipples, inserts them into the lady's va-jj in a thrusting motion to provide a kind of average pleasure wave. Popular practice on the european continent.
Popularised by British comedy duo Anna & Tom.
"I'm not in the mood for sex, but my god, i would just kill for a good old nipple frig"
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.
Buy the mug