When you jam your dry thumb in your significant others ass while they are sleeping and immediately hook your thumb as if holding a bass's lip and try to hold on as long as possible.
by pylock June 11, 2016
Get the bass lippingmug. by dprizzle November 3, 2010
Get the Bass Lipmug. by Daniel Wee Wee Flannigan October 25, 2023
Get the Drop The Bass Lipsmug.