pack the lunch
1) Making a lunch to take with you on a trip. 2) Being ready for a long, hard day of fighting. 3) Wearing a fake penis, especially if you're a lesbian or a bisexual woman.
She packed her lunch for the road trip like she was going to war.
He packed his lunch like he was ready for a marathon fight.
She packed her lunch like she was going to impress everyone with her fake penis.