Similar to a wet willie or reverse wet willie. Australian implies that you stick your finger “down under” (anus or vagina) before putting it into someone’s mouth.
by SpT3 May 20, 2021

Samuel: "Dude why was your hand so wet when we shook hands after that last game?"
Danny: "It must have been the collateral wetness."
Danny: "It must have been the collateral wetness."
by Cart-Cart McJerrywink March 12, 2014

by kbgbug January 2, 2023

One of the wettiest wets out there (Aka Tbwet) One with the pulse vibes, sick car jolls in the garage and f**cken rollies boiii #wetiest #TipsyWetBrothers #vibes
by Wettiestvibs November 3, 2018

by Skilledalien July 11, 2023

by Anonymous May 11, 2003

To orally lubricate one's own finger with saliva and insert into another person's anus. Similar to a Wet Willy, but in the B-hole.
by MTOny March 9, 2021
