ficchi means "Fitch" in English.
It's a katakanization, a loan-word.

ficchi is normally written with katakana, as フィッチ.
ficchi written with hiragana is ふぃっち.
ficchi does not have kanji.
Romaji fi cchi

Orthography Notes

  • フィ is a compound kana representing a single syllable with multiple characters.
  • ッチ contains a small tsu which makes the consonant of the syllable longer.