(dated) an exclamation of surprise

Only me; myself alone.

The official nickname for the state of Missouri in the United States of America.

Alternative form of shoot me

(idiomatic) A cry of surprise

Exclamation of long-suffering dismay or disgust.

Alternative form of Show Me State

(slang) Gin.

(slang, now rare) A strong alcoholic drink.

Overbearing; overpowering.