Shushing

[Kit]

When receiving a blowjob, the guy [waits] until he is about to reach orgasm at which point he shoves his penis as far as possible down the girls throat and [violently] ejaculates, causing the girl to [vomit] uncontrollably.

[Renato]

The action of telling or signalling someone to be silent.

[Lanell]

present participle of shush