On the putting green, Scotsman MacRory laughs as his ball sits directly within Bugs Bunny's putting line, thus forcing Bugs to bank-shot his putt with a cue stick. This is a reference to the 'Stymie' rule that was part of golf and was in force until abolished internationally in 1952. Modern rules of golf dictate that MacRory must mark his ball to allow Bugs to putt out.
The title is based on the song "My Bonnie Lies over the Ocean", a traditional Scottish folk song which remains popular in Western culture.