Oh my lanta, correctly spelled oh Mylanta is a memorable catchphrase from the sitcom Full House.
The quote is a humorous take on the expression “oh my god” replacing “my god” with the antacid brand Mylanta.
The phrase comes from and ad campaign of Mylanta, a non-prescription anti-acid medicine in the 1970’s.
“Oh my lanta” then became the catchphrase of D.J. Tanner (portrayed by Candace Cameron Bruce) in the TV sitcom Full House, that ran between 1987 and 1995.
The success of the television series had made the catchphrase stick in the minds of many watchers.
Many fans of Full House were puzzled by the true meaning of “oh my lanta” so the internet is filled with forums, articles and message boards, revolving around the meaning of the expression.
It was first defined on Urban Dictionary in 2002.