In Japanese, emotive right-dislocation happens in sentences featuring
dislocation without a pause, where the speaker is surprised, shocked, disgusted, insulted, and so on. Such sentences often resemble questions, but the speaker doesn't expect answers, they're just expressing their emotions.
Examples include:
nani kore なにこれ,
nani sore なにそれ,
nani are なにあれ, "what's
this/that,"
nanda koitsu なんだこいつ, "what's [up with] this guy,"
nani kono onna なにこの女, "what's [up with] this woman," and so on.
Similarly:
dare da omae 誰だお前, "who are you?"
baka ka omae 馬鹿かお前, "are you stupid?"
korozu zo temee 殺すぞてめえ, "[I'm] going to kill you," and so on.
See the article on
dislocation for details about the grammar.