Boston bluff 

While driving, the act of entering traffic from a side street, driveway, or parking lot by inching forward into the roadway a few more inches after each passing car has _not_ stopped to let you onto the street -- eventually placing your vehicle so far into the roadway that the next oncoming car _has to_ stop to let you in.

"Dude, it's rush hour -- if you don't use a Boston bluff, we'll never get out of here."

Boston bluff by betablocker47 April 13, 2009

Boston Bouffant

(Pronounced Bah-stin Boo-font) (noun) when a male is performing cunnilingus on a female partner, and the female lets loose a queef of such intensity, that it parts the male's hair right down the middle. ( in a similar fashion to George McFly's hairdo in back to the future).

Skyler went muff diving, and came out with a Boston Bouffant! What a loser!

Boston Bouffant by Scoopalone June 4, 2014