Definition of "gawk"

gawk¹

/ɡɔːk/

noun
plural gawks
1. A cuckoo.
2. A fool; a simpleton; a stupid or clumsy person.
  Quotations
  A Duke of Weissenfels, for instance; foolish old gawk, whom Wilhehnina Princess Royal recollects for his distracted notions, — which were well shaken out of him by Wilhelmina's Brother afterwards.
  1855, Thomas Carlyle, The Prinzenraub, Westminster Review

gawk²

/ɡɔːk/

verb
third-person singular simple present gawks, present participle gawking, simple past and past participle gawked
1. To stare or gape stupidly.
2. To stare conspicuously.
3. (colloquial, vulgar) To suck.