An occurance that happens when you are giving somebody anal and you pull out too fast, causing the suction to unload their shit and your jizz all over you.
(Significance: Toilets in a submarine have to be properly flushed, or else it will overflow or spray the contents everywhere)
Bob: "Dude, how'd it go last night?"
John: "It was good until the end..."
Bob: "Awwwww that's the most important part man!! What happened?"
John: "Well, after I finished, I got a submarine toilet"
Bob: "..... You're fucking retarded. I got you laid and this happens??"
A try-hard individual who goes to a party only on the account of one or more of the following:
1. There's going to be alcohol there
2. There's going to be weed there
3. His/her stalker crush is going to be there
4. Someone said there will be biddies/hot guys there
Bob: "Dude, I think we need to invite more people to this party"
John: "What about that hot Ally girl? Just tell her that we'll have bud there"
Bob: "Yeah that'll work! After all, she is a Party-Sucker"