a human of smaller proportaions than most, but also classed as sex on legs.
person 1 : hello funsize, how are you?
person 2 : hey i'm good thank you
A female individual who can fit into most overhead compartments,backpacks and small places.
Funsize is an absolute master at hide and go seek.
Funsize loves getting her messy on and hitting up a
bit of emo love.
Funsize is under 5ft so 4ft whatever.
Look at that lil' bitch she a funsize!
Hey get funsize out of your duffle bag :P