liquor up
1. To consume alcohol, especially with the aim of getting drunk. We started liquoring up around 2 PM, so by dinner time we were all thoroughly hammered. I kind of regret getting liquored up so often when I was in college—I had fun at the time, but I can barely remember it now.
2. To urge, encourage, compel, or facilitate someone to consume alcohol or become drunk. In this usage, a noun or pronoun can be used between "liquor" and "up." I hadn't intended to liquor us all up over dinner, but I had the wine there and thought I might as well open it all. I could tell he was trying to liquor me up to make me more amenable to the idea of spending the night with him.
liquor someone up
to get someone tipsy or drunk. He liquored her up and tried to take her home with him. They liquored up the out-of-town visitors.
liquor up
to drink an alcoholic beverage, especially to excess. Sam sat around all evening liquoring up. They seem to liquor up almost every night of the week.
liquor up
v.1. To cause or encourage someone to consume alcohol: They liquored me up and asked me where I hid the money. My boss is at a bar liquoring up some potential investors.
2. To become drunk. Used in the passive: I got liquored up on whiskey and started a fight.
3. To consume alcoholic beverages steadily: They've been liquoring up in the bar all day.