What is jechor in dominican spanish

Question

boy breaks up with girlfriend and his friend says in dominican spanish, "no no no ke jechor"

whay does that mean?

Answer 1

burro jechor is a donkey who behaves violently when he sees his female, By extension jechor might then mean just donkey, so qué burro would be ´what a fool´ ,

But this is just an inference, I´m not from Dominican Republic.