This is a party prank that is best done at a random house party. You start off by emptying a whole role of toilet paper into the toilet and then proceed to drop a huge deuce ontop of the toilet paper (similar to a toad sitting on a lily pad). The best part is if executed properly the owner of the toilet will not be able to flush it thus having to remove the atrocity by other means
Dude1: Hey man how was that girls party last night?
Dude2: She got really hammered and told me to leave so I made an angry toad in the upstairs bathroom.
Dude1: Hahaha maybe she'll think twice about kicking someone out when she's digging that out with a shovel tomorrow!