He orders enough candy and oranges for about 60 youngsters, puts them in individual packages and takes them to Salem United Methodist Church on Main Street to be handed out to children.
The tradition was started years ago by the Keedysville Ruritan Club, but it's Rohrer's name that is associated with it.
"They always say, 'You do it because no one else will do it,''' said Rohrer's wife Martha.
"I just like doing it," said Rohrer, who retired from Foodland Town and Country supermarket on Jefferson Boulevard 17 years ago.
Rohrer said his wife and another couple in town usually help him stuff the candy boxes. They are handed out during a Christmas play and children's party held every year at the church.
The yuletide festivities have taken on different forms throughout the years. They once included a parade through town, and Rohrer would play slide trombone in the Rohrersville Band.
At age 84, he still plays in the group.
"He doesn't quit," said Martha.
Kids in town get the pleasure of seeing Rohrer more than once a year.
At Easter, he gives out chocolate rabbits to youngsters in Taylor Park, across from his house on Main Street.
"I go down to Kmart and get a rabbit about like that," said Rohrer, holding his hands about a foot apart.