What is Smeller?
1.
A partiicularly potent smelling fart.
Saul: "Whew thats a smeller!"
2.
A specific person who likes to smell other people.
Ex. Walking by a person and getting a faint hint of cologne/perfume and then running up close to them and taking a huge whiff. That's the smeller.
See
3.
The anus/rectum
He's a dirt digger - he only does girls up the smeller
See