martstinsej

first meaning: to freak the fuck out from seeing a small inanimate object such as a sticker.

second meaning: when you mistake a child for a baby monkey and throw bananas at it.

people often spell this word with a "g" at the end but that would give it a whole new meaning.

friend 1: "..... ahah i thought a baby was a monkey and i threw bananas at it earlier.."
friend 2: "hahahahahahhaha thats called a martstinsej!"
friend 1: "that's a THING???!!"

second scenario

stranger one: " man i saw that guy over there run away from a sticker! it was hilarious"
stranger two: "oh man he really had a martstinsej??! i missed it!"