When your dick is not entirely hard but not completely flaccid either. An in between state where the length of your shlong is clear but it doesn't seem like you're hard. The perfect state to show off your length without being clear you are attempting to show off.
Grant: Hey look at this photo of my willy
Frank: Nice length dude but this is obviously in your Dolphin State you show-off!
Flapping around with your hands like dumb flippers and tunnel vision when something shocking happens.
I roll up on a this bike crash and I'm trying to dial 911 but my hands went all emergency dolphin and it took four tries
The act of inserting the brush end of the toothbrush up your own asshole and then proceeding to brush your teeth with it. This can also be done to others as a form of punishment with another person putting the toothbrush in while the taker must brush with it after.
Steven: "What I did wasn't even that bad"
Devon: "Bro you gave yourself a sticky dolphin, IT'S THAT BAD"
When a Gamer(or theoretically other)'s voice cracks while ranting and raging and sounds like illegible high pitched dolphin noises. A term used by MoistCr1TiKaL often while watching videos Gamer Rage.
"His voice cracked a little but he didn't go Full Dolphin, it's not a real gamer rage if someone doesn't go Full Dolphin."
The act of vomiting and shitting one's brains out simultaneously.
That gas station sushi had me sugar dolphining all night.
A demon
O gawd! An irrwaddy dolphin!!!
Similar to how a dolphin sleeps, a nap where half your brain rests while the other half stays awake and aware of your surroundings on the lookout for predators.
Damn son I feel so re-energized after that dolphin nap I took after class today