I ran into this poetic expression when my literature teacher quoted Walt Whitman,
I depart as air—I shake my white locks at the runaway sun;
I effuse my flesh in eddies, and drift it in lacy jags.
According to Dictionary.com, 'jag' has the meaning of 'a load, as of hay or wood'. So here 'lacy jags' means 'wood with laces'? I'm confused.