To include a subject in some sort of plan or policy under old rules, terms and/or conditions, usually because new regulations may exclude said subject. After a rule change, new rules and regulations apply to new members (the new rules could in fact say "no new members"), unless the members were "grandfathered in" (e.g. old, existing subjects who became members before the rule change), in which case, the old rules still apply.

Learnthespanish.com began charging a fee of $5.00 per month starting in November of last year. Members who established accounts on their websites before then however, were grandfathered in, which means that they can continue to use their services for free.

grandfathered in by Tatertoot July 27, 2016

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Grandfather cock

When you search up 'Grandfather clock' but accidentally forget the 'L' and boom you get here.

iy mate, i wazza gonna bye me Pap a grandfather clock but accidentally searched 'Grandfather cock'! help me pls bro

Grandfather cock by Ɋㄩ乇乇尺丂卩卂匚乇匚ㄖ爪爪ㄩ几丨丂ㄒ☭☭☭ July 23, 2018

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grandfather eating ice cream

What post coital withdrawl looks like up close.

"Hey Margaret. What does THAT look like? I think it looks like your grandfather eating ice cream."

grandfather eating ice cream by Running out of patience February 5, 2007

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