Day drinking (n.) needs an occasion, which is what brunch is for.
Day drinking (n.) is a decision that ends the day it starts.
Day drinking (n.) is judged by the hour on the clock rather than the amount in the glass.
Day drinking (n.) is casual pregaming
Pregaming (n.) is cheap vodka in a dorm so the bar tab can stay at one drink.
Pregaming (n.) turns the destination into a formality.
Pregaming (n.) is like a warm-up so thorough that you miss the game.
Pregaming (n.) is drinking in order to afford drinking.
Social drinking (n.) is like a handshake that lasts four hours and ends in a taxi.
Social drinking (n.) is friendship paced by how empty the bottle gets.
Social drinking (n.) stops the moment the last other person leaves, and the drinking doesn't.
Social drinking (n.) is drinking on a schedule other people set.