have it knocked
have it knocked
To know that something will be successful. Well, I have it knocked if my biggest rival isn't going to be running in the race.
See also: have, knock
Farlex Dictionary of Idioms.
have it knocked
Slang To be certain of success: "He knew he had it knocked after he saw a rough cut of Chinatown" (Time).
See also: have, knock
American Heritage® Dictionary of the English Language, Fifth Edition.
- knock back a drink
 - knock dead
 - knock 'em dead
 - knock (one) dead
 - knock somebody dead
 - knock someone dead
 - knock (someone or something) out of (someone or something)
 - knock about with (one)
 - bang/knock your/their heads together
 - knock in