Green’s Dictionary of Slang

1. a trick.

1941		cited in Cassidy & LePage Dict. Jam. Eng. (1980).
1983		T. White Catch a Fire 227: He gave Bob a warning, telling him that his dream was a ‘laigz’ (which can mean either an opportunity or a wily trick).

2. influence.

1960

cited in Cassidy & LePage Dict. Jam. Eng. (1980).