A couple years ago, Chris Kirkpatrick said that ALL five guys from ‘N SYNC are in a group text together, so they can talk smack back and forth.

And now, Joey Fatone is sharing some more insight.  He says, quote, “We just bust each other’s chops . . . it just goes back to clownin’ on each other . . . I think it’s even worse now because we have more ammunition.

“Sometimes it’s about [our ‘N Sync merchandise].  Sometimes it’s, ‘Hey, look at my kid.'”