1) (Literal) To prepare a lunch meal for travel
2) (Slang) To be prepared for a
long effort
3) (Slang) To wear a false penis, esp. a
lesbian/bisexual
woman
We'
re going up to the park for a picnic, I'm going to
pack a lunch.
If he's going to tangle with me, he'd better
pack a lunch.
At the lesbian bar, half the women were dressed as men and packing lunches.