skit ‧ ter /ˈskɪtə $ -ər/ BrE AmE verb [intransitive always + adverb/preposition]
[ Date: 1800-1900 ; Origin: Probably from skite 'to slide, skip' (18-20 centuries) , probably from a Scandinavian language ]
to move very quickly and lightly, like a small animal SYN scurry
skitter across/down/along etc
Something skittered across the alley.