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A weeb sleeve is a protective sleeve for playing cards that have an anime artstyle printed on the back, obscuring the card's own back.
The word is a portmanteau of 'weeb' meaning one who likes anime, and 'character sleeves' which are sleeves with character prints on them.
Yo Lewis, check out my new Love Live weeb sleeves! Let's play some Magic!
by ThommyTheThird June 29, 2018
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