The Crabby emote is an Rare Fortnite emote. Crabby was available via the Item Shop for 500 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Crabby Emote Details
Ready in a pinch.
Fortnite Crabby Emote PNG Images
Here is the PNG images of Crabby below!