bubble
n.— «Someone who offers them money is said to “flip them a bill,” and police officers are affectionately known as “bubbles.”» —“Beggars can be choosers” by Dina Chaiffetz Denver Post (Colorado) Aug. 5, 2007. (source: Double-Tongued Dictionary)
Further reading
A Fort Collins, Colorado, listener shares the story of an unusual telephone greeting. A businessman who was used to cranky customers answered every call with, “Talk to me nicely.” This is part of a complete episode. Transcript of “Talk To Me Nicely”...
In 1916, a small-town newspaper in Pennsylvania printed a fanciful item about a local gathering with a guest list that included, among others, Miss Ella Vader, Mr. Ray Zor, and other punny names. This is part of a complete episode. Transcript of...