Green’s Dictionary of Slang

1. a person.

1937–84

Partridge DSUE (1984) 1080/1: earlier C.20.

2. (Irish) an unruly child, a disreputable young person.

1948		J. O’Connor Come Day – Go Day (1984) 132: I’ll tell your father, you wee skitter ye.
1952		M.F. Caulfield Black City 83: ‘If ever them skitters try to take over the North ----!’ ‘Don’t worry, man, they’ll never get it. Not while there’s a Protestant left to stop them.’.
1983		P. Devlin All of us There 37: A child who fought back was ‘a wee skitter’.
1994		P. Quigley Borderland 35: ‘Blind skitter,’ he roared.