1 definition by ladyGram
When a person goes out for the sole purpose of hooking up. Similar to a milk run, a woman may get dressed sexy to attract guys and go for a cumrun. Or, a guy gets ready and goes out with the intention of cumming. (then finds someone to do that with )
This girl at the bar is definitely on a cumrun tonight. Shes got on her cumrun dress tonight! This group of guys are definitely on a cumrun tonight, so aggressive!
by ladyGram December 16, 2013