Adjective
When something requires or is best to pay attention.
Bob: Yo, did you see the new way to clean up space debris? Big uh, magnet, thing.
Kyle the 3929287th: Nah
Bob: Yeah it's attentionary.
Candice: Hey dad, should I get the Ligma Remover or the Sawk Pokémon card?
Dad who's about to get the milk: Ok :Thumbs_Up:
Candice: Tf?