Lily attempts to join the group of woooo girls, but when she lacks the necessary cowboy hat she rocks a firefighter hat she got from fire safety in school. Hawt.
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Robin, feeling left out as the single girl in her group, bonds with a group of single party girls she calls the wooo girls. Jamie Lynn Sigler guest stars as one of the girls.
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How I Met Your Mother Season 4 Episode 8 Quotes

Barney: I know. We are Swedish. We are so cool with our baguettes and our Eiffel Tower.
Marshall: Dude, Sweden is not France, you know that, right?
Barney: Oh, it's France!

Lily: Oh, my God, Bitch, this is our anthem!
Robin: Really, who sings this?
Lily: Is LL Cool J still doing things?