twamp sack 

A dub from the tram man

Yo I just picked up that twamp sack

twamp sack by Stooooovveee April 24, 2016

Tramp Sack 

A comfy sleeping bag or one that has been owned for a few years.

I'm going camping this weekend, so I better not forget to take my Tramp Sack with me.

Tramp Sack by Mad Bob March 14, 2020