a somewhat ballsier version of smacking someone, usually in the face.
NOTE: this is not a mushroom slap
reppert: Dude back away or i'll straight smackalack you in the face.
by drew s December 9, 2004
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When you just finished a book, but you also love someone.
Alex: "I did it, Big-Ol-Smackalack"
by Smackalacker94 October 5, 2021
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