lem Share definition Flag To give up on reading a book before the end. Can also be capitalised ("Lem"). Veronica: I had to lem "Memoirs Found in a Bathtub". I just couldn't finish it. lem by litlas February 4, 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