Any species of cat fish
they were fishing at the river last night for whisker fish
Claiming its origin from a friend of a friend's grandmother, Whisker Fish is a colloquial term for the male genitalia, specifically excluding the testis.
In her search for the elusive Whisker Fish, Allison frequented their know habitats including but not limited to, the track pant, the skivvies and the jean cut off. Upon very limited research Allison concluded that the Whisker Fish was not at all elusive as she had originally hypothesized, but was in fact quite alarmingly ubiquitous.