Where something is said and then a certain person does not know a key piece of general knowledge or a word that everyone should know.
The following are examples of 'The H Effect'
e.g.1
The 'Person': Was Hitler British?
Everyone in the room: *stare*
e.g.2
The 'Person': This should be a saturday night pizza fetish
The room: What? this isn't sexual..
The 'Person': a fetish is a gathering of people, right?
The room: *stare*
by maximusmountain October 22, 2009
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To substitute any "ee" sound in a name with the letters "g-h" to make a more "unique" name.
The g-h effect:

Hailey becomes Haileigh

LeeAnn becomes LeighAnn
by downwithopp January 7, 2013
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Feeling High & Horny when you smoke weed.
Man I hear she gets the gets the H&H Effect when she gets high.
by Whoknowswhoireallyam February 26, 2017
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