cinemaone's definitions
When a bigger girl without much breast muscle mass puts on a too tight sports bra and it looks like she has one single breast around her chest and spilling over to the sides.
Sometimes, you see a girl walking down the street and she's all mash-patitty and then you see her gym bag and see its the sports bra.
by cinemaone February 28, 2011
Get the mash-patittymug.