top shelfer 

Dropping a crap in the toilet tank (instead of the bowl).

JJ got so drunk he laid a top shelfer at Angelina's party.

top shelfer by BendyBendo February 2, 2007

Top Shelfer 

When you take a dump on top of the toilet tank lid.

I was thinking of taking an upper decker at Carl's house but decided to give him a top shelfer instead,

Top Shelfer by MrWizzrd February 23, 2021

topshelfer

Great payback to someone who's done ya wrong....Go to their house...excuse yourself to go to their bathroom. Lock door. Remove top of toilet...drop a duece...place top back on...Hence the term Topshelfer....

This dude owed me money so I gave him a topshelfer the other night at his house....

topshelfer by Ed B. Goode May 21, 2008

Topshelfer

A drink consisting of a shot of every spirit on the top shelf of the pub. Commonly consumed on ones birthday

John was shitfaced after doing a topshelfer to celebrate turning 43.

Topshelfer by Hairy Lee69 July 7, 2023