It means 'swamp' but also 'bling'??? This has gotta be the most random JERK kanji since 討、which means both 'attack' and 'discuss.'
TALK to Ozzy about rocking out in the wet swamp.
hell of many.
沢 (swamp / bling) + 山 (mountain)
= 沢山 (hell of many. )
extravagant (luxurious in a bad way)