(Canada) A mayfly.
Any insect in the corydalid subfamily . Unlike most dobsonflies (subfamily ) they don't have the enlarged mandibles typical (at least in the males) of that subfamily.
Add your own interpretation of "fishfly".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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Browse all slang words starting with F.