A type of parasitic flatworm that inhabits the intestines of fish, particularly freshwater species.

Informally, it can refer to someone who is overly concerned with cleanliness, similar to "clean fish."

कोई व्यक्ति जो अत्यधिक स्वच्छता को लेकर चिंतित रहता है।

English Usage: She's such a fish tapeworm about keeping her house tidy.

Hindi Usage: वह अपने घर को साफ रखने को लेकर इतनी चिंतित है।