the phase of being high when you're just absolutely chillin'. you're just the right amount of high ;)
#guy 1: "dude, are you still super high and freaking out?"
#guy 2: "nah dude, i'm totally at cruising altitude right now"
by heyhobobbyjoe February 24, 2010
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strapping an explosive device to a moderately sized mammal (preferably a llama) and dropping it out of an aircraft no higher than 30000ft
dont mess with me or ill launch my low-altitude cruise mammal at you

i have a low-altitude cruise mammal on my plane

i wish i had a low-altitude cruise mammal
by otteb_hershelski April 20, 2011
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A state of X (adult life for example) where no serious effort is urgent, or even needed anymore.
College kids talk about how they want a degree so they can shake things up and change the world, but like most people, deep down they just work towards a life at cruising altitude, and then that idealism fades just like yours or mine.

Once I've paid off my loans and can live life at a cruising altitude, I will at least consider having a child
by how-young-people-talk March 14, 2020
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