"Lousey" is probably misspelled. Trying louse instead Definition of louse
louse has definitions from the field of zoology
1
[ noun ] (zoology) wingless usually flattened blood-sucking insect parasitic on warm-blooded animals

Synonyms

sucking_louse

2
[ noun ] has a nasty or unethical character undeserving of respect

Synonyms

worm dirt_ball insect

3
[ noun ] (zoology) any of several small insects especially aphids that feed by sucking the juices from plants

Synonyms

plant_louse

4
[ noun ] (zoology) wingless insect with mouth parts adapted for biting; mostly parasitic on birds
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