Very drunk. In British slang, "pissed" means drunk (not angry, like in the US), so pissed to the gills is like being so drunk, you're SWIMMING (hence, the GILLS) in alcohol.
Last night I went down the pub and got pissed to the gills!
doing something incredible at the last second
i didnt have enough time, so i pulled a lebron and finished it.
6👍 3👎