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The japanese word for "panties" (panties in a japanese accent) that since Chii from the series Chobits (CLAMP) has said, has spiraled into another form of slang for wannabe-asian otakus. Other examples of these incidents are phrases like "kawaii desu" and "konnichiwa."
"Chii wears pantsu!"

"I am such a cute anime girl nya I wears me some pantsu!"
by Little Rabbitface June 11, 2005
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Jul 26 Word of the Day
Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed
I got a call from X the other night. She had an extra ticket to a concert she bought for a friend, but they couldn’t make it so she called me to ask if I wanted to go because I am her Second String Friend.
by Deus-ex-machina August 26, 2020
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3
1) Literally just pants adopted into the Japanese language; the final u is largely muted.
2) Female underwear. Likely to mean this if said in English with the final u more pronounced.
1) Mika was a bit of a tomboy so she often wore pantsu instead of a dress.
2) Aiko seemed feminine since she commonly wore lacy dresses, but once I harassed her after two much sake, her pantsu beneath such a dress were among the last things I saw before her high roundhouse kick knocked me and several of my teeth right out.
by Bahmo May 25, 2019
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4
Japanese for "Briefs" and/or "Male Underwear"
"Pantsu! Pantsu! Pantsu!"
by AnonTifa! January 01, 2005
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