when morbidly obese people "fuck" or have extremely hardcore sex (eww). the term comes from the idea of the fat (or flubber) is bounced or jiggled vigorously. its disgusting, but its real.
We saw a whole flock of seagulls at the beach fluckering. This word was created by my son, Matt, at the age of six. He wanted to know what the seagulls were doing, and when we couldn't tell him what it was called, he said they were fluckering.
The sexual act of shoving a deep fried pastry, commonly named a fritter, up into the vaginal orifice of a female, and the subsequent act of eating the pastry from the vagina.