Muffin

The origin is Unknown.

Full definition of muffin

(plural muffins)

(British) a type of flattish bun, usually cut in two horizontally, toasted and spread with butter, etc, before being eaten
(especially US) A type of rich individual cake containing chocolate chips, blueberries or some other flavouring.
(computing) a mechanism used in the Java Network Launching Protocol analogous to the cookie mechanism and which permits a program running in a browser to perform operations on a client machine
(slang) a term of endearment
(sexual slang) a vulva
(baseball, slang) a less talented player; one who muffs, or drops the ball
(slang) a charming, attractive young man