The act of male on female anal sex culminating in fellatio.
Oh man, did my mouth stink after giving that guy a reverse boston cream.
by MoZZeReTH February 23, 2011
During sex, when the guy finishes cumming, he wipes the cum on his dick and then re inserts it in the vagina for more sex for additional lubricant.
Trevor gave Danielle the reverse boston cream during thier raunchy sex last night.
by Alexis Miller February 26, 2011