Frunderday 

A period of intoxication and/or partying that extends from Friday until Sunday, with little to no rest. Normally caused by large doses of inebriants including, but not limited to, alcohol, cocaine, ecstacy, or methamphetamine.

I popped a bean(a dose of ecstacy) after work, and blew lines (of cocaine) all Frunderday.

Frunderday by Claytron 1985 November 22, 2006

Friderday 

a friday night that extends well past Saturday afternoon.

Dude, what day is it? It's Friderday man...

Friderday by twilightsaga2 January 13, 2010

fraderday 

midnight on Friday night.

guy 1: what day is it?

guy 2: its fraderday!

fraderday by nobody else here October 22, 2017

funnerday 

The days of the week that are the most fun (Saturday and Sunday).

What are you guys doing this funnerday?

funnerday by izzzz12345 July 26, 2009