Lots of luck in your Senior year 

An expression of skepticism, i.e. "good luck...if you make it that far"; to be unfazed.

Number "46" has been known to quote his coach (?) as saying: "Lots of luck in your Senior year!"

Lots of luck in your Senior year by talk2me-JCH2 June 25, 2023

lots of luck in your senior year 

Something you say to your opponent when they mess with your frisizhnubs.

"If they try to raise the cost of frsizhnubs I will veto it. Lots of luck in your senior year!"

lots of luck in your senior year by Frishishadub February 8, 2023