Definition of smudges:
(v) :
To obscure by blurring; to smear.
(v) :
To soil or smear with dirt.
(n) :
A blemish or smear, especially a dark or sooty one.
(n) :
Dense smoke, such as that used for fumigation.
(v) :
To use dense smoke to protect from insects.
(n) :
(US) A heap of damp combustibles partially ignited and burning slowly, placed on the windward side of a house, tent, etc. to keep off mosquitoes or other insects.