Top definition
You blast your load so deep inside an individuals arse it comes out their mouth when they spit it out.
Ruth: Blast it!

Kayla Harry: (load blasts)

Ruth: (Vomits the load out her mouth)

Kayla Harry: Woah you just performed Mouth Cum!
via giphy
by Grant Hansen July 05, 2018
Get the mug
Get a Mouth Cum mug for your sister Julia.