Top definition
The believe that something lucky/good happens for every time you see/hear/notice the number 17 in a significant place or context.
This can also be used when one is 17 years old and something especially good happens to them.

Sometimes the multiples of 17 (34,51...) can also be used in it's place.
Getting that girls number right after the goal from Kellen Moore was definitely the 17 effect!!!
by 71tteS January 25, 2020
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Oct 3 Word of the Day
I couldn’t care less (but one must keep up appearances, right?)
Frenemy has a family tragedy. "Thoughts and prayers."
by November 05, 2018
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