"Rolling On The Floor Laughing With You Inside Me"
ROFLWUIM is an extremely creepy acronym used while flirting via instant messaging, texting and other non-verbal communication methods by females and or gay males, in most cases after a joke is told by the person being flirted with.
Like its parent acronym - ROFL, ROFLWUIM can be combined with other acronyms or expanded by adding additional letters.
ROFLMAOWUIM - Rolling On The Floor Laughing My Ass Off With You Inside Me
ROFLWUIMWESWTFBBQ- Rolling On The Floor With You Inside Me Whilst Eating Steak and What The Fuck Barbecue Sauce
Guy: "(insert hilarious joke)"
Flirtygurl57: "You're so funny and cute XD. I want to ROFLWUIM"
Guy: "noice"
Roll On Floor Laughing While Jacking Off. This occurs when an extremely hot bitch tells you a funny joke. You cannot resist to laugh, and you have the urge to jack off. For females this turns into ROFLWFO, Roll On Floor Lauging While Fingering Oneself
Eric: Dude that hot bitch told me a joke, i totally ROFLWJO.
Brandon: Haha, did she ROFLWFO too?
Eric: Yeah then we had butt sex Brandon: OMG