When someone is so good at sex that they seem to control when you cum. Much like being a water, fire, earth, or air bender in Avatar. Can be male or female.
A friend that isn't really that great of a friend. On your friendship scale the Top spot is your Best Friend, the Bottom Spot is referred as a Cumfeeder
Cumbleberry: When your girlfriend goes out and gets another mans load shot in her. and tries to clean up with toilet paper and comes home and you eat her out and you get a mouth full of cumbleberries.
Much like the dingleberry, the cumbleberry is the leftover toilet paper or inner sock lent that is stuck to your cock after cleaning up a blown load. It usually goes undiscovered until the next time you pee.
when me and Ron went to take a piss in the urinals, i couldnt help but notice he had a nickel sized cumbleberry on his crown that stuck out like a sore thumb.