cheeser

cheese +‎ -er. The smile is said to resemble the uniform white coloration of cheese, or possibly related to the phrase say cheese; an uncircumsized man may have more apparent smegma, known in slang as dickcheese.

cheeser (plural cheesers)

1. Someone who makes or sells cheese.
   • 1964, Thomas Armstrong, The Face of a Madonna, link

     ...heard the cries of poultry dealers, cheesers, and medicine men.

   • 1988, Michael Hofmann, translating Beat Sterchi, Cow, p. 2:

     A tractor motor started up; […] the cheeser’s arms carried on grabbing pails of milk and pouring the white flow by the hundredweight into weighing pans and cooling basins […].

2. A broad gleeful grin.
   • 1977, Llyod Pye, That Prosser Kid, link

     I looked at his normally deadpan face and saw the faintest outline of a smile tugging at the corners of his mouth, a cheeser grin on anyone else.

3. A jovial greeting
   • 1994, Tom Kakonis, Shadow Counter, page

     Got to be a good sign though, so Click rigged out a cheeser of his own and said brightly, "Mornin', Mr. Brewster," underlining it with the molar squeak.

4. (slang) An uncircumcised man.
5. (slang) A senior or geezer.
   • 1994, Lisa Kleypas, Dreaming of you‎, page 259:

     But you'll want to marry someone your own age, not some old cheeser.

6. A cocktail sandwich made with cheese.
   • 2011, Katherine Hall Page, The Body in the Gazebo: A Faith Fairchild Mystery‎, page 173:

     Tom had made toasted cheese sandwiches, or toasted “cheesers,” as he called them.

7. (Britain, dialectal) A conker with a flat side.

• cheeres