1. with no reluctance or doubt in mind.
2. duh
3. word said after a redundant statement is spoken.
1. Mother: Did u finish your homework?"
You: "fosheezy."
2. NE 1: "12 eggs are a dozen eggs."
You: " fosheezy"
3. yer gf: " r u sure u've dun this b4?"
You: " 4 the last time, fo-she-ezy.