In the hall: a dub (or if you'd rather refer to her as "your dub", nonetheless still a dub); slayer material
Over the wall: a girl in town and/or girl at a neighboring college
On Call: back home, who you really only talk to via facebook/text when leave periods or long weekends are approaching, or by phone (only if absolutely necessary). usually GP (guaranteed pussy).
1) In the Walls (a girl in the Naval Academy)
2) Over the Walls (a girl located in Annapolis or nearby, but not in the Naval Academy)
3) Back Home (in the midshipman's home town)
Guy 2: Well.. my girl wouldn't microwave me a hotpocket last night.
Guy 1: Word, What did you eat then?
Guy 2: A Hot Pocket. I had to give her an Iron Triangle to show her whats up.
Guy 1: Nice
we made that bitch scream in that iron triangle