We found one dictionary that defines the word hitch in one's get-along:

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1. hitch in one's get-along: Wiktionary

Definitions from Wiktionary (hitch in one's get-along) ▸ noun:  (US, slang) A problem or impediment. ▸ Words similar to hitch in one's get-along ▸ Usage examples for hitch in one's get-along ▸ Idioms related to hitch in one's get-along ▸ Wikipedia articles (New!) ▸ Words that often appear near hitch in one's get-along ▸ Rhymes of hitch in one's get-along ▸ Invented words related to hitch in one's get-along