Flumpa-Lumpa 

A phrase referring to sex especially when one or both of the participants have large quantities of body fat. This can be derogatory, but is typically meant to be and taken as a joke.

Did you hear? Donna and Steve did the flumpa-lumpa last night!

Flumpa-Lumpa by sherlockianintheTARDIS December 9, 2014

FRUMPALUMPAGOUS 

N. A woman who asks, "Do I look frumpy in this?"

She is a total frumpalumpagous. Where did she buy her clothes..in her great-grandmother's closet?

FRUMPALUMPAGOUS by LGBrit August 19, 2007

Frumpalumpakus

N., a person or being with cottage cheese thighs, frumpy hair, and no shoes or socks on their pudgy feet.

If Adam does not watch his weight, he will become a frumpalumpakus.

Frumpalumpakus by Luke January 15, 2004