Definition of choke-back phrasal verb in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Definition of choke back in the Idioms Dictionary. choke back phrase. What does choke back expression mean? Definitions by the largest Idiom Dictionary. choke sth back definition: If you choke back feelings or tears, you force yourself not to show how angry or upset you are. Learn more.