Guck Share definition Flag The noise that is made when a penis is being deep throated. Male - "Oh yeah, suck on this purple mushroom tip"Female - "Guck, guck, guck, guck, guck" Guck by Gucking May 21, 2014 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug