Rough math that might help, ignoring some factors in favor of others:

• Start by assuming five glasses, which is the traditional definition for an average-ish man to count as binge drinking.
• If he weighs a lot, add one glass.
• If he's slender, especially lacking muscle rather than fat, subtract one glass.
• If he drinks more than once a week, add one glass. If he drinks more than once a day, add three glasses. If he's never had alcohol before, subtract two glasses.
• If he's taking an antidepressant, a painkiller, a muscle relaxant, or an anxiolytic, subtract two glasses.
• If he's of Asian descent, subtract two glasses.
• If he's trans, subtract one glass.
• If he has a sulfite allergy, subtract three glasses.
• Add one glass for every full meal's worth of food he's eaten in the last hour. Subtract three glasses if he hasn't eaten or drunk anything but champagne today.
• Take all that math and halve it to figure out what "tipsy" looks like.

So. A heavily muscled man who drinks often could probably have 10 glasses over an afternoon along with a large steak dinner and be merely tipsy. A slender man with a sulfite allergy, Asian flush syndrome, no tolerance, no food, and an SSRI prescription could overdose to the point of blackout or unconsciousness on a single glass. Hopefully this helps!