Top Definition
When a small puppy grows up to be a ridiciously massive dog similar to Clifford the Big Red Dog.
My neighbor's poodle was so little when they brought it home. Now it has been 2 years and it's over 100 lbs. and 3 and a half feet tall. When they asked how? I said "it's the clifford effect people."
by dj2xxnip May 15, 2010
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