To quickly put out. As in sexual favors.
"Did she smuth last night?"
"OH yeah, she smuthed alright."
"Mission accomplished."
"Would you smuth for Ashton Kutcher?"
"Alcohol makes me smuth."
Going missing and dogging the boys for a female ‘friend’
Why are you being such a ‘smuth’
Okay mate, are you ‘smuthing’ us tonight?