Rashi on TanakhJudges 12

And crossed northward. They crossed the Yardein and travelled north in trans-Yardein to Gilod.

Since the contemptibles of Ephraim had said, "What are you ,Gilod?" The lowliest in Ephraim would mock Gilod, saying, "Of what significance are you, Gilod, among Ephraim and among Menasheh?" This is Targum Yonasan's interpretation.

The Gilodites captured the Yardein crossings. They posted sentries at the crossing areas.

Say Shiboles please. May I cross this river flow?¹Shiboles” is translated as “flow”.

They were not proficient in proper pronunciation. They were speech deficient.

Ivtzan. Boaz.²The husband of Rus, ancestor of King David. (Bava Basra, 91:a)