1
general::
Also, stink up. Cause a bad odor, as in These onions smell up the whole house, or Your old sneakers are stinking up the closet; throw them out. [Mid-1900s]
American Heritage Idioms
2
general::
Phrase(s): smell something up
to cause a bad or strong odor in a place or on something. • Your cooking sure smelled this place up! • The spoiled meat really smelled up the house!
McGrawhill's American Idioms And Phrasal Verbs