What's on your mug?

Talking sweet to someone you like.

Cup Caking means, boyfriend talking with girlfriend or vice - versa on the phone.

By raychone

cup caking means flirting with another person doing anything leading up to, and excluding sex.

hugging, kissing, feeing up on the other person, and could be servicing (however that depends on the other party's definitions and boundaries of what cup caking is)

By plumeriakisses

hugged up with a woman.

yah boi was cup caking with that girl all night at the party.

By Double O

To fart into your hand (cupping the freshly baked cake) and release it under someone elses nose.

I was staying at jeff's house and in the morning he woke me up with a cup caking

By Remy le puisssant

When a guy is with a girl and can't answer his phone.

Don't bother calling him, he's off cup caking.

By Golightlee