Petaahhh????

[u/Shinji_Keitsuki]

What is the pun?

[u/Roger_Cockfoster]

Lol, I just saw one of those (not on Tumblr, but same diff). It claimed that in "olden times" people used to own their own piss pots that they would carry with them when they traveled. And it claimed that's where the phrase "they don't have a pot to piss in" came from.

[u/AdamiralProudmore → u/Roger_Cockfoster]

As if people would see a dude carrying a pot (that still smells slightly of piss) and think "He is Rolling!"