sloppy third 

Third Base with oral action. Giving a blowjob to a guy or eating out a girl. The last base before home plate.

How far did you get? I got a sloppy third

sloppy third by A. Nonymous November 15, 2003

sloppy thirds 

A foursome, with three dudes, and triple pentration.

Yea, I cant believe she handled all of those sloppy thirds. Each third was so sloppy, but together they are sloppy thirds. When one left to use the restroom, it was temporarily sloppy two/thirds.

sloppy thirds by the definer. July 8, 2010