derived from the singer Ville Valo due to his curly hair and hat.A flopsy is always male and often has an arched back.
por pokie_orna 18 de Dezembro de 2003
When a man and a women are about to have sex, but the man loses his erection when his penis contacts her vagina
"Man I was about to get some last night but I went flopsy."
por Mcdrizzle 13 de Fevereiro de 2010
When a person (typically a girl) sticks her thumb up man's butthole and flips around his balls between her fingers.
"Ryan just told me that Sarah's flopsy giving abilities are unmatched!
por IMW 05 de Abril de 2008