verb. To teeny-weeny-ize.
Real citation: "Vivien, I like them all. Aren't you kind. When Rosie is being a scaredy cat, you tell her it's okay. When Mikey's being a scaredy cat, I call him a chickenshit and tell him to "unbiggify" his tail."
(Roberta, Feb. 3, 2004, http://www.able2know.com/forums/about3090-0-asc-220.html)
Made-up citation: "Hello Aries. According to the cosmic portents, nothing unbiggifies a boner like your face."