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7.
To dance or party. Used as a non-sexual connotation in flute section cheers throughout the country.
"Dynamos! Dynamites! Sleep all day, and WAPOO all night!"

"Bethany couldn't understand why wapoo couldn't be used on a t-shirt--that is, until she checked the original urbandictionary definition!"
by ncflutesection September 03, 2012
 
1.
To dance
To party
To have a good time
To hang out with friends
"Dynamos! Dynamites! Sleep all day, and wapoo all night!" from Mamma Mia.

"I'm going to wapoo with the girls this weekend. Do you want to come, too?"
by okaythisisthelasttimeipromise September 03, 2012
 
2.
To dance or party.
I'm going to wapoo this weekend. Want to join me at the dancing club?"

"Dynamos! Dynamites! Sleep all day, and wapoo all night!"
by justmakingsure September 03, 2012
 
3.
a word the flutes want to use on their t-shirts because they think it means "to dance and party", but urbandictionary had the wrong definition so they made their own up and published them a bunch.
WINNERS WAPOO EVERYDAY.

Dynamos! Dynamites! Sleep all day, and WAPOO all night!
by ithinkwegetthepicturekari September 03, 2012
 
4.
to dance or have fun with friends
Kari, Bethany, and Sarah wapoo every weekend at Taco Bell, and everyone gives them weird looks when they dance with their tacos.
by youthinkanyonewillnotice? September 03, 2012
 
5.
Not to be confused with a sexual act, to wapoo means to party or dance.
Referenced in the 2008 movie, Mamma Mia, in a cheer by Donna and the Dynamos: "Dynamos! Dynamites! Sleep all day and wapoo all night!"

"What do you mean you're wapooing? I thought only sluts did that!"

"No, it means I'm going out to party tonight! I'm a virgin, genius!"
by thisismy13thtry September 03, 2012
 
6.
NOT SEXUAL
"Wapoo! This is fun!"

"Hey, Allison and I are going to wapoo this weekend--want to join us?"

Reference in the 2008 movie, Mamma Mia, in a cheer by Donna and the Dynamos.

"Dynamos! Dynamites! Sleep all day and wapoo all night!"
by allerson5 September 03, 2012