the movement of having sex. humping/ the up and down motion.
1. beth. libby and i were flobbling last night in bed.
2. She looked up at him while he was trusting and said "hey we're flobbling!"
3. i was flobbling, you were flobbling, we all were flobbling last night.
Wobbling bits of fat on a person.
He kept flobbling my arm even though I told him not to.