oargasm
When someone thinks they’re a seal and starts doing seal things, usually because they did something stupid and got an oargasm.
My neighbor started doing seal noises and ran into the lake because he thought he was a seal.
My brother got an oargasm and started clapping like a seal because he thought he was a seal.
I saw a kid running around the park screaming, 'I’m a seal!' after he had an oargasm.