Here are some fun expressions which mean, well obviously that you are drunk. These can very well represent the stages of drinking a person goes through., from sober to drunk!
Flushed: Mildly drunk, just enough to put some extra rosy colour to your cheeks.
Tipsy: You are happy high when you are tipsy. This is the milder version of drunk where you talk a lot or laugh a lot.
Legless: Drunk enough to be not able to walk. You are almost leg less.
Drink like a fish: You are fish drinking from a watering hole. This is an expression for someone who drinks regularly and a lot!
Slammed: One tequila, two tequila, three tequila, Floor! Used for someone who is very very drunk mostly after having rounds of tequila slammers.
Hammered: Drunk enough to feel like hit by a hammer. Well, very very drunk.
Sloshed: You are not tipsy and you are not hammered, but hey! somewhere in between where you move like a liquid in a container. You are sloshed.
Plastered: Drunk enough to give blank expressions.
Wasted: Drunk, drunk enough to be of no help at all. A major hangover awaits you with well, you wasting your time and day.
Barking at the moon: One who goes crazy after drinking, talking to the walls and laughing looking at the mirror may be?!
Sober as a Judge: This is an ironic idiom, it means drunk.
Drunk as a lord: Well, it also means drunk. Drunk as a lord because a lord of certain place has the full right to command as much alcohol as he wishes to.
Slaughtered: Very drunk.
Be on the wagon: Someone who is off drinking alcohol.
Also read: 14 Wine jargons you must know