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The act of ejaculating into your sexual partners mouth from a distance. Distance of 15 centimetres or below is a tiny dean, 15-30 centimetres is a standard dean, 30 centimetres and up is a deano.
Alasta: Me and Jonny had a great time last night, we gotta little drunk and i gave him a gobbie.

Max: Did you two do some bettioling?

Alasta: Yeh he did a fucking awesome deano.
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