yehei shmei shmuck

a small circumcised penis
(in jew talk)

can be used as a:
noun, insult, or exclamation

"Dude, you have a yehei shmei shmuck!!!"

"Look what you did, you yehei shmei shmuck"

"YEHEI SHMEI SHMUCK!! I DROPPED MY PHONE IN THE FUCKING HOT TUB!!!"