Could somebody please critique my poem?

"Veterans of Domestic Rebellion"

Men such as have done months of time,

who don't take readily to rhyme -

not oft' affecting arduous sports,

they're hunting for a box of shorts,

a Pyrex pipe, a twenty-bump.

They cycle not - that rush would stump -

but only bike if motorized.

When hung'ring for some eldritch drug

they're known poor scribes for funds to bug.

Their rep's their style and only wealth.

It is unlikely it's for health

when they're seen to get exercised.

Their words, though mainly foul, are prized....