Soggy potato Share definition Flag a person who is lacklustre in responding to emails, text messages, or basic conversation Shannon, why did you respond to my paragraph-long email with an "lol". You're such a soggy potato! Soggy potato by GrammarNazi2013 February 19, 2013 0 0 Get merch Get the Soggy potato mug. Buy Now — $32.95 See more merch