Similar to get to da choppa in that "the batcave" or the destination is already known by all. An excited phrase Often used along with a superhero like hand gesture. (both hands out in front of you. Or only one. One is acceptable)
Entering the liqour store, you may yell "to the batcave" . Entering a party is also a "to the batcave!" occasion.
by L and L October 12, 2008