Term used to descibe when someone spends a long time in the shower (not necessarily 45 minutes) because they are masturbating. The term is often used without proof to describe anyone who has spent a long time in the shower, regardless of the reason.
Calum was late because he was having a 45 minute shower.
by Chris!! April 15, 2007
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When you have a class with someone you know, but are only friendly with them in that class time.
"John and I are the biggest 45 minute friends of all time!"

"I know you guys are so friendly in English but never talk to each other in the hallway."
by ROcktheCashback January 22, 2012
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When you go off of Rowan’s time and end up in futurama by the time she is actually ready
Ha! I am Ro spelled R-O I will be there in “45 minutes”
by Captain za October 27, 2023
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