Bump Coomers
To engage in the act of sex. Coined by Harper Four fellows at Bradley University, bump Coomers is a variation of bump uglies. Ron Coomer was a favorite of the group when he was playing for the Chicago Cubs, although it was agreed that he was a dogface. "Uglies" was replaced with "Coomers" and a new phrase was born.
After they got out of the hot tub, both of them disappeared. I think they went to her room to go bump coomers the rest of the night.