Does "they riz it" mean "they redeem it"?

Context:

Lyrics[edit]I
The night before Larry was stretched,
The boys they all paid him a visit
A bit in their sacks too they fetched
They sweated their duds[4] till they riz it
For Larry was always the lad,
When a friend was condemn'd to the squeezer,[5]
He'd sweat all the togs[6] that he had
Just to help the poor boy to a sneezer[7]
– And moisten his gob 'fore he died.

More:
http://en.wikipedia.org/wiki/The_Night_Before_Larry_Was_Stretched