speedy muffler 

a quickie; a sex act that takes less than three minutes to complete (usually a blow job or hand job).

I once got a speedy muffler in a long line at a toll-booth.

speedy muffler by R.A.Trussell November 11, 2007

the speedy muffler 

When a man is about to recieve oral sex, he asks his partner a random question. As his partner begins to reply, the man then forces his penis into their partner's mouth unexpectedly, so as to produce muffled sounds of protest.

Cathy would not shut up earlier today, so i put her in her place with the speedy muffler.

the speedy muffler by Mecha_Tyler May 22, 2010