When someone from the midwest starts acting like a hipster from the east or west coast and forgets their roots, they're "going coastal".
Did you see all those food pics Bob posted to Instagram? He's going coastal.
Losing it. Throwing a Fit. Going nuts or off the deep end.
Hey Bud i would watch it or im gonna end up Going Coastal on your Ass
Going to the beach/ocean
With other people or friends/family
VERB
Yo, bro what you doing today ?
Dude my family and I are Going Coastal. You want to join us ?
Better believe it bro.