The act of placing as many funyuns possible on your member and proceed to recieve a handjob from your partner
"Billy asked me for a funyun rub last night, I didn't complain."
Sexual intercourse with a pregnant woman, could also be used to describe sex involving chubby chasers/chunky monkeys.
John: Where the fuck were you last night, you wanker?
Mike: Rubbing tummies with Shelia mate, she is her final trimester and it is fucking weird!
John: Wow, really? you seem pretty evenly matched then, eh!
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Tammy:Did you see the girl with Mike last night? She weighed like 15 stone!
Cheryl: Yeah, Mike prolly loves rubbing tummies!
Providing compliments to another with the purpose of flattery.
Sam made sure to rub the tusk when he told Alex how great of a guitar player he was.
When you get raped by trump and your ass has Cheeto dust all over it.
Bro I have Rub Toe
Two lesbians with yeast infections performing sexual acts.
I bet those two were rubbing cheese last night.
Andrea was rubbing her ham in the bathroom rubbing the ham means jacking off or masterbating in the feminine form