Skuntank's HGSS entry is saying that the stench of each consecutive spray gets duller, which does not conflict with the Pearl's statement about the lingering stench of a singular squirt. It just means the foul juice is used up on the initial discharge.
"Hello. My Name is Inigo Montoya. You killed my father. Prepare to die." - Mandy Patinkin, [The Princess Bride]