Someone who blocks, rejects or holds back another person solely to be spiteful and for no other legitimate reason.
Did you get invited to Andrea's party this weekend?

No, Andrea is being a stecko and won't invite me. She knows I will be the center of attention and hates that.
by Jason100000 August 29, 2012
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The name of a mystical lizard in southern Illinois. Typically found playing Xbox in his room. Or saving people 15% or more on car insurance.
-Have you seen Gecko Stecko lately?
-Nah bro he’s been saving people 15% or more on car insurance.
-Fair.
by Chauy December 11, 2020
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