Dipper was born on August 31, 1999, five minutes after Mabel. His family lives in Piedmont, California. From a young age, Dipper's mother would dress him up in a lamb costume and have him perform his signature song and dance, the "Lamby Lamby Dance". He and Mabel were raised unreligiously, but celebrate all holidays at her insistence. Since he was young, his favorite holiday has been Halloween, of which his favorite part is trick-or-treating with Mabel. He is also known to have been teased about his birthmark by other children until he started hiding it, which may be how he earned his nickname when he was no older than five. He attended Eggbert Elementary with his sister.