Liberal Dictionary English Dictionary
adjective, dip·pi·er, dip·pi·est. Slang.
- somewhat mad or foolish: dippy with love.
adjective -pier or -piest
- slang odd, eccentric, or crazy
“mad, insane, crazy,” 1903, perhaps from dip + -y (2), but the exact signification is unclear. Another theory connects it with dipsomania.