stock up

1. To acquire the stock or inventory one requires. As manager, one of your duties is to stock up when the kitchen starts running low on supplies. Don't worry, I've been stocking up on fuel for the past three years for just such an occasion.

2. To gather, build up, or hoard a supply (of something). We stocked up on bottled water and canned goods, so we should be fine during the storm. There's supposed to be a fuel shortage soon, so I've been stocking up for the past three weeks.

3. To furnish someone, something, or some place (with something). In this usage, a noun or pronoun can be used between "stock" and "up." We stocked up the house with food, so you should have plenty to eat while we're gone. The kitchen is running low on a few things, but Brady's coming round to stock us up tomorrow.

4. Of a horse's leg, to swell with fluid in a painless manner not indicative of an injury. It is not uncommon for your horse to stock up if it has spent the night in its stall. Once it begins moving, the swelling should dissipate entirely.

stock up (with something)

to build up a supply of something. You had better stock up with firewood before the first snowstorm. Yes, I will stock up today.

stock up

1. To provide or furnish something with supplies: The bartender stocked up the bar with vodka. We stocked the house up with emergency supplies.

2. stock up on To gather and store a supply of something: We stocked up on canned goods before the storm came.