A generic term for little wooden figures used in german board gaming... but which is absolutely NOT german. Germans call these "Spielfigur" or even "Männchen".
Person 1: "Oooo, Carcasonne has all sorts of cool little meeples."
Person 2: "Dude, it's called "Männchen". Hahaha. Lol, dumbass."
A cutesy, girlish-sounding word taken from the German game Carcassonne, this word has been adapted to have many meanings, such as "That sucks" or "Oh crap." It can also be a verbal expression of a sigh or puppy-dog face. Whatever the usage, the word is usually expressing sadness or disappointment.
Professor: "The two papers will be due tomorrow. Sorry about the short notice."
Student: "Meeple."
Guy: "I'm working through some serious health issues right now."
Girl: "Meeple... I hope things go okay."