Try the Let's Play Worms page, but heres a list of some
Spaff
Goo
Biff
Gimp
Nog Bedge
BlengeSquelch
UrethraXtreme
Gob, Spaff, Bint, Bodge, Biff (twice), Gump, Smegpot, Guffpap, Chip, Kipper, Floppy, Bemp, Tim Limp, Sleb, Wormy Worm, Fudd Dunker, RectusErectus, DumpGubbler, NogBedge, UrethraXtreme, Fedge Gondola, Gash Hinge, Dibble Munt, Urethral Bead, Wump Polyp, Spewtum Slurp, Squodge Heimer, Mr. Belding, Limp Wibbler, Smeg Crust, Fodgy Div, Phoenix Dunbar, Bidge Wump 3000, Fod Woggler, D Flemberbridge, SmearAroma, Spudge Funker, Mongy Gorp, Throbby Quelch, Hemorrage Scoop, Fog Goggler, Spluff Bunker, Laybial Streak, Gog Noggler, Fidge Gunkhaus, Wedge Munkhelm, Bobby Drillboids
Notable Gavin worms, from memory:
Fogdar Binwipe, Uddy Budmar, Bunty Pickle, Phungal Quiff, Spaff Guzzle, Speciminal Leak, Placential Slip, Ovarian Spasm.