The action of getting a hotel room for an extensive period of time when you were supposed to be staying with friends, in a short-term rental or similar.
The act of meeting a stranger, taking them back to a shared hostel room and sleeping with them when other people are in the room. Variations - hostelled.
Crab: "Did you have a goodweekend in Camden?"
Peter: "I met an absolute ho and indulged in some hostelling."
Crab: "I bet you hostelled her good?!"