1 [I,T] gulp sth (down);gulp (for) sth to swallow large amounts of food, drink, etc quickly 快速地、大口地吃或喝；狼吞虎咽: He gulped down his breakfast and went out. 他赶紧吃完早饭便出去了。She finally came to the surface, desperately gulping (for) air. 她终于浮出水面，拚命地大口吸气。

2 [I] to make a swallowing movement because you are afraid, surprised, etc （因恐惧、惊愕等而）吞咽，咽