In the Name of God, the Compassionate, the Merciful.
Hi!
Store Keeper: Now, are you going to buy any underwear or not? Because I’m a very busy person toady.
Man: No, I can’t buy any underwear.
Store Keeper: And why not?
Man: Because I don’t want to buy any shirts or pants.
Store Keeper: And what does that have to do with it?
Man: Because I can’t buy an undershirt if I don’t have a shirt to wear it under, ←
and I can’t buy underpants if I don’t have pants to wear them under. ←
Now that makes sense, doesn’t it? Ha, ha, ha.
… to wear it under
What does “to” mean here?
Does it mean “in order that” or something else?
Thank you