Blue Tuba

When the over excitable seaman preforms oral sex on the rest of the crew when they cross over the tropic of Capricorn or cancer while hiding in the dorade vents of a ship.
Hurry up! Davey from the Navy is manning the BLUE TUBA on the overnight watch tonight. You want to get in line early before the Boston Lockjaw gets tired and stops clenching.
by reddevil12553 June 27, 2023
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sassy tuba

sassy tuba can be defined as sucking a shit covered penis whilst reaching around and fisting the asshole of the recipient.
oh my i got so drunk last night and gave a stranger a sassy tuba.
by filthymcnasty August 20, 2012
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tuba sloth

A funny girl that likely went to band camp, that is not promiscuous and moves slowly.
by SingingSurgeon February 10, 2021
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rusty tuba

Much like a rusty trumpet, only with a much larger partner.
Yeah, your mom had a great time when I gave her the rusty tuba.
by Rhymes With Sock May 10, 2005
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contrabass tuba

A tuba designed for marching that resembles a concert tuba in shape but is carried on the left shoulder. They usually weigh between 35 and 55 pounds.

The visual advantage for such a tuba on the field is that it can be held in carry (held vertically in front of the person) and in various other positions.

They are called Contras for short.

See the pic above.
Contras are the most badass instruments ever.
by corpsfreak April 27, 2005
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Wagner Tuba

A fucked-up musical instrument most frequently heard in the works of Richard Wagner and Anton Bruckner. Though capable of sounding quite beautiful, it usually sounds like shit and elicits dirty looks and sighs from the rest of the orchestra.
Musician #1: "What are we playing on tour in March?"

Musician #2: "Bruckner 8"

Musician #1: "Oh Fuck! Wagner Tubas!!!"
by hrnhtr February 10, 2009
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sex tuba

A threesome. of one boy and two girls.
One hole to bow in, one to play in, and a stick.
"Did you hear that Johnny plays the sex tuba in band."
"Mann, I'm going to join that class."
by Fezz K. October 10, 2009
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