An annoying, pesky, person who is immature.
"Hey, you know that boy over there?" "Yeah." "He's a pamplemousse." "Oh, I'll be sure to stay away."
The late, great Brazillian composer that invented the refrigerator.
He also invented the telephone.
This is the French word for grapefruit, but it is also slang for 'fatso'.
Mangez plus, Pamplemousse!
why, yes, it's an insult to call someone a grapefruit, in french.
"OMFG! Way to go, ya fucken pamplemousssssssssse!!"