名詞 gulp:

1. a large and hurried swallow
   同義詞：draft, draught, swig
2. a spasmodic reflex of the throat made as if in swallowing
   同義詞：gulping

動詞 gulp:

1. to swallow hurriedly or greedily or in one draught
   同義詞：quaff, swig
2. utter or make a noise, as when swallowing too quickly

1. He gulped his food.
   他狼吞虎咽地吃東西。
2. She gulped nervously, as if the question bothered her.
   她緊張地咽了一下，似乎那問題把她難住了。

gulp

v.（動詞）
gulped,gulp.ing,gulps
v.tr.（及物動詞）
To swallow greedily or rapidly in large amounts:
大口吞，狼吞虎咽：貪婪地或迅速地大量吞下：
例句：
gulp down coffee.
大口吞下咖啡

To choke back by or as if by swallowing.
忍住，抑制：用吞咽或類似吞咽的方式抑制住
v.intr.（不及物動詞）
To choke or gasp, as in swallowing large amounts of liquid.
噎住，嗆?。阂』蛲覆贿^氣來，如在吞下大量液體的時候
To swallow air audibly, as in nervousness.
出聲地吸氣：出聲地吸氣，如在恐懼中
n.（名詞）
The act of gulping.
吞咽：吞咽的行為
A large amount swallowed at one time.
一大口：一次吞下的量
Computer Science A small group of bytes that may be either data or instruction.
【計算機科學(xué)】 字節(jié)組：可以表示數(shù)據(jù)或指令的一小組字節(jié)

來源：
From Middle English gulpen
源自 中古英語 gulpen
or from Flemish
或源自 佛蘭芒語
or Dutch gulpen
或 荷蘭語 gulpen

【引伸】
gulp.er
n.（名詞）
gulp.ingly
adv.（副詞）