Other forms: glugs; glugging; glugged
When something glugs it makes the sloshing, gurgling sound of liquid being poured out of a bottle. You might glug some milk onto that sugary cereal and call it breakfast!
There's a distinctive sound you make when you thirstily gulp water from a bottle or pour a healthy amount of olive oil into a pan: glug, glug, glug. This imitative, informal word comes from the Old English glub, "to swallow greedily." You can use it as a noun or a verb, so you might ask for a glug of syrup on your pancakes or glug an energy drink after a run on a hot day.