It’s a way of saying: "but why" replacing but
Why though = It’s like a but Why, but in a more exclamative way
by Jorat June 20, 2019
Something you say to confuse a questioning party when they want you to do something you really don't want to do.
Want to go harass old people at the grocery store? For because why maybe no for why though?
by Scandalicious (Jo-Dee) April 30, 2003