To sit face to face with a girl while inserting your thumb into her bum and giving her a classic motorboat simultaneously.
Dude last night Roger so Burt and Ernie'd that girl while they were sitting on the couch.
by RiderGuy1006 October 08, 2011
1 more definition
to sit unreasonably close to your friend when there is plenty of room elsewhere
I looked down at the long strech of open bench, and wondered why my friend was trying to make us into burt and ernie
by hitlist821 April 04, 2009