(T)hrow(b)ack (T)hursday. A social media post that references the past. Basically the same thing that the Timehop app does for you every day. Usually used in the form of a hashtag.
Lol, look at this old selfie #tbt
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A person who thinks he or she is cool because they buy guitars and/or acessories but in reality have ABSOLUTELY NO idea how to play a guitar
Kevin: Hey dude. Sweet guitar!
Taylor: Thanks. It was $4000.
Kevin: What songs can you play?
Taylor: Uh..... none..... but i'll learn.... eventually....
Kevin: Dude you're being a real Guitar Poser!
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