Schmeckle is slang for penis.
The origin of Schmeckle is Yiddish, where funnily enough it also means penis.
Schmeckle is used as an insult for someone who behaves like a dickhead rather than for the offending member itself.
Schmeckles were made famous by Rick and Morti as the currency used in Pocket Mortys in the episode “Meeseeks and Destroy”. Rick and Morty’s waitress tells all the patrons that her breast enlargement cost 25 her Schmeckles.
“Shlemiel, you got spots on my schmeckle!”.
How many Schmeckles for your pet donkey?