1993, Kinky Friedman, Kinky Friedman: Three Complete Mysteries: Greenwich Killing Time/A Case of Lone Star/When the Cat's Away, Wings Books (1993), ISBN 9780517093283, unknown page:"Dykes?" I smiled my interdenominational ice-breaking smile. "How about gap-lappers?" I asked.
1999, G. M. Ford, Last Ditch, Pan Books (2007), ISBN 9780330427555, page 84:"I don't have nothin' to do with her anymore. She's a dyke. She and her gap-lapper girlfriend got them a condo up on the hill."
2006, Mike Edwards, Friendly FIre, Pegasus (2006), ISBN 1903490197, pages 258-259:That's it isn't it? You're lezzers. A couple of beanflickers, gaplappers, switch hitters.
