go leafs go 

to show support and acceptance of the most famous religon in canada, the Toronto maple leafs.

Outside of church, or Air Canada Centre, Bill proudly yelled "Go Leafs Go!"

go leafs go by thepond97 August 22, 2011

go piss on a leaf 

a way to tell someone you are upset or angry with them. you use this term if you do not agree with someone. it's slang.

Woah man! You look awful!
Oh go piss on a leaf!

go piss on a leaf by egt_13 May 22, 2017