Didn't plan accordingly, so I didn't do a marinade.
Can I still toss it on the grill with successful results? If so, how would you do it?
If it's not recommended to skip the marinade, I'll just move on to Plan B and have the flank steak some other time.
It may be tough, have any meat tenderizer?
The only meat tenderizer I have is my teefs.
Plan B fully executed - we moved on to tuna fish sammiches.
Flank steak is now marinating for a future meal.