There is no such NPC or quest in any version of Stick RPG 2 (or 1).
This is an internet meme / inside joke referencing:
If you saw this in a video, comment, or forum – it's humor. No squeegee, no guy, no quest.
Real Stick RPG 2 goals: max stats, buy castle, become President/CEO/Dictator, unlock all jobs/vehicles/items.