When I made this comic, the Wikipedia page for “woodlouse” had a really long “common names” section. In early 2023, somebody pruned the section with the reasoning that Wikipedia “isn’t Urban Dictionary” and most of the names were “unsourcable”, but the older version of the article is still accessible here.
Here’s the list taken from that version of the article:
billy baker (South Somerset)
boat-builder (Newfoundland, Canada)
butcher boy or butchy boy (Australia, mostly around Melbourne)
carpenter or cafner (Newfoundland and Labrador, Canada)
charlie pig (Norfolk, England)
cheeselog (Reading, England)
cheesy bobs (Guildford, England)
cheesy bug (North West Kent, Gravesend, England)
chiggy pig (Devon, England)
chucky pig (Devon, Gloucestershire, Herefordshire, England)
daddy grampher (North Somerset)
damp beetle (North East England)
doodlebug (also used for the larva of an antlion and for the cockchafer)
fat pigs (Cork, Ireland),
gramersow (Cornwall, England)
granny grunter (Isle of Man)
hardback (Humberside, England)
hobbling Andrew (Oxfordshire, England)
hobby horse (Isle of Purbeck, Dorset, England)
horton bug (Deal, Kent, England)
humidity bug (Ontario, Canada)
mochyn coed (tree pig), pryf lludw (ash bug), granny grey in Wales
monkey-peas (Kent, England)
pea bug (Medway, England)
peasie-bug (Kent, England)
pennysow (Pembrokeshire, Wales)
pill bug (usually applied only to the genus Armadillidium)
saw bug (Dingwall, Nova Scotia)
slater (Scotland, Ulster, New Zealand and Australia)
sour bug (Cambridgeshire)
wood bug (British Columbia, Canada)