Explanation
Indicates there's no end once you start listing, doing, or saying something: 'If one starts to..., there will be no end.'
Formation
Verb-conditional form (ば) + きりがない
Detailed explanation
The pattern ～ばきりがない is used when expressing that if you start an action—like listing examples or complaining—there is no end. It literally means 'if (you) do X, there's no limit/end.'
Examples
Waruguchi o iihajimereba kiri ga nai.
Once I start speaking ill of someone, there's no end.
Kare no ketten o kazoereba kiri ga nai.
If I start counting his flaws, there will be no end.
Kono kuni no utsukushii basho wa, agereba kiri ga nai.
If I start listing this country's beautiful places, there's no end.
Hoka ni mo rei o agereba kiri ga nai.
If I start giving more examples, there will be no end.
Practice
Grammar content sourced from hanabira.org.