One of Offset ’s all-time worst experiences? Sounds like marriage -- he swears he’ll never be a groom again … and even advised other men to run from the altar!

On the "Full Send" podcast , the rapper laid it out ... at 33, he’s done the whole marriage thing with Cardi B , raised three kids ... and in his mind, that mission’s already complete. Gallery Launch Gallery Getty

Offset doubled down ... even warning host Kyle Forgeard , who dreams of settling down, not to do it unless he’s ready to flip his whole life upside down.

Kyle talks about even having a girlfriend can flip life on its head ... like, he’s always got girls on the show, and a GF would be grilling him nonstop about why. To him, that’s a headache he’d rather skip.

Offset’s sermon clearly hit home ... Kyl

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