I love learning new words (and many new words and phrases learned (learnt?) thanks to this forum) so I googled both perpendicular and dry socket. I prefer perpendicular if I get a choice. If only because of the nasty taste of the other.You could always give it a go. If nothing else, the concentration required to remain perpendicular could take your mind off the pain.
Honestly, though. Don't be overly brave with it, just in case you have a dry socket. That can be a nasty thing, and would require attention.
Won't be overly brave, promise! But today, it's sunday night with a fat hangover, so no need to worry about dry sockets until tomorrow. Thanks for the heads up, though, @DCUKMod !