The gnat larva, for example, breathes at the tail-end, hanging head-downwards from the surface-film.
You strain out a gnat but swallow a camel.
I combined the two to make ' Gnat ' - a little creature that's very bothersome to big ones ' .
The trouble is that he hasn't got a clue, not a gnat's whisker of know-how about building.
Manson and Bancroft suggested that the second host of the parasite is the mosquito or gnat, and for a long time it was thought that they were conveyed to man by the mosquito dying after laying her eggs in water, the larval nematodes escaping from her body and being swallowed by man.