Rathole or Rat Hole may refer to: Rathole, Edmonton, a former two-lane tunnel in Edmonton, Alberta, Canada Rat Hole, Gaping Gill Chicago rat hole, a rat-shaped hole in a sidewalk in Chicago, Illinois Rat-hole mining removing chips inappropriately from the table in poker, "going south" an audio file archiving tool in Soundfont a jingle on the show MacBreak Weekly a channel on EFNet IRC a method of money laundering a section of the Cincinnati, New Orleans and Texas Pacific Railway