An expression used when trying to express you are on your period or anything resisted to that subject
"Babe did I do something wrong" " no it's not you it's just girl stuff"
by Areyoudumbbbbb January 03, 2017
Fun things that girls do, like looking at rainbows and petting unicorns. This also includes liking ponies and playing with barbie dolls.
Man, they are talking about girl stuff, and not the fun girl stuff like unicorns and rainbows - Donut from Red vs Blue
by RobinoFree April 10, 2011