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Thursday of each week is a designated shirt day, hence, Shirt-Thursday.
Shirt-Thursday was founded and spread throughout the western world by Robert "carth" Spencer-Green in comemoration of the royal horse artillary during the war.
"What are you doing on thursday?"

"IT'S SHIRT-THURSDAY!!! I AM WEARING A SHIRT!!!"
by Denny Loi December 01, 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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