What is a beenie?

A hat in my day

well, a beanie Baby is generally a small stuffed animal........a wild popular craze in the late 90's.......and today, you can't give them away.

It's Jamaican Patois for an erection.

Beenie is the kid who was seen riding with Cecil the Sea Monster on Saturday cartoons. "I'm coming, Beenie Boy!!!"

Headgear

Beanie (seamed cap), in parts of North America, a cap made from cloth often joined by a button at the crown and seamed together around the sides

Beanie, a knit cap, in British, Australia, South Africa and parts of Canada and the United States (also known as a toque)

Beanie, any type of headgear unsuitable for safe motorcycling

Arts, entertainment, and media

The Beanies, an Australian children's band and podcast

Beanie Babies, a popular stuffed toy animal line, launched in 1993

Ben "Beanie" Harper, a character on the soap opera Love of Life

Beany, title character of the children's programs Time for Beany, Beany and Cecil, and The New Adventures of Beany and Cecil

Also

Beeny, a hamlet in England

You spelled "beanie" wrong. And it's a type of cap that you wear