(Australian/English
slang) Uncircumcised penis, i.e. intact with the
foreskin concealing the glans, which to some, strangely resembles the
soft, crumpled woolen headwear!
Antonym: Helmet
When I was at high
school, we'd
play handball and often separate into different teams using physical aspects, such as light
hair vs. dark, talls vs. shorts and of course, beanies vs. helmets!