A dick jerk reaction
When you see something so ridiculous you immediately want to stick your fingers up your butt and laugh until you pee
I saw a guy wearing socks on his hands. I stuck my fingers up my butt and laughed until I peed.
My dog tried to eat my homework. I stuck my fingers up my butt and laughed until I peed.
My little brother told a joke about a chicken. I stuck my fingers up my butt and laughed until I peed.