This thread is epic. Could give the Glad some competition. According to Urban Dictionary a sponge monkey is
It was more likely that she called you a spooge monkey; urban dictionary definition
"Singing roadkill-like creatures with eyes that fluctuate in size constantly and the mouths of humans. Sponge monkies try to convince people to eat from Quizno's."
It was more likely that she called you a spooge monkey; urban dictionary definition
"One whose hands are always sticky from "spanking the monkey".