This is a euphemism for going to the toilet - the blue lagoon is reference to the use of blue tablets that colour the water in the toilet.
Sorry I was late, I was feeding fish at the blue lagoon.
by Theodore H Biscuit October 12, 2010
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Blue fish, red fish, old fish and new fish
My dad:💀
by amongstusall October 03, 2022
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Blue boy syndrome

Blue boy syndrome is when someone is obsessed with the boy band BROCKHAMPTON. The name comes from the cover art for SATURATION, SATURATION II and SATURATION III as all the cover arts feature different men either wearing blue, or having blue body paint.
Kevin: Have you seen Adam's obsession with BROCKHAMPTON?
Casper: Yeah, he has hardcore blue boy syndrome.
by kusar0x February 18, 2018
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National Blue Butterfly Day

A day to remember tough situations in life are meant to be enjoyed in the moment and peaceful when over, like the sighting of a blue butterfly.

This day is every September 18th.
Carmela: "My relationship is causing me so much stress, I don't know what to do."

Emily: Maybe he's your blue butterfly; a rare experience that is only meant to be a lesson, not a forever.
Carmela: "What does that have to do with it?"

Emily: "It's National Blue Butterfly Day; do with that information as you will."
by BrunetteBeauty00 October 25, 2022
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Blue Peter

A sex act whereby a man masturbates and saves his ejaculate, later wiping it on his partner.
Have a Blue Peter.... here's one I made earlier.
by Slang_Bang July 25, 2022
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blue rap

A combination of all genres of rap, otherwise known as "blue rap." A new form of rap genre that was created by Roland Mac.
Only a few number of musicians can blue rap. Kinda like Kanye.
by December 14, 2020
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boys in blue

Fuck the Horde,boys in blue ftw
by Wagwan piffting March 16, 2017
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