Top definition
when a couple locks them selves in a room for 48 hours to celebrate getting closer, or after one has been away for a long time, or in preperation for one of them to leave
guy1(military)>hey man when i get home me and my girl are planning on a 48 hour lock up

guy2>dude why the hell would you do that? it sounds borring!

guy1>because ive been in a desert the last 18 months and we want 48 hours to our seves locked up in our rooms
by arcanise September 18, 2009
Get the mug
Get a 48 hour lock up mug for your Facebook friend Helena.