gulp for air
Fig. to eagerly or desperately try to get air or a breath. Tom gulped for air after trying to hold his breath for three minutes. Mary came up out of the water, gulping for air.
gulp something back
Fig. to force or hold back tears, sobs, etc. He gulped his sobs back and clutched at his wound. He gulped back his sobs.
gulp something down
to drink all of something, usually quickly. He gulped his coffee down and left. He gulped down his coffee.