Funny Rude Christmas Mug, They Aren't Going To Suck Themselves, Adult Humor Xmas Party Mug [MG81] Warm-up with a nice cuppa out of this customized ceramic coffee mug. Personalize it with cool designs, photos or logos to make that "aaahhh!" moment even better. It’s BPA and Lead-free, microwave & dishwasher-safe, and made of white, durable ceramic in 11-ounce and 15-ounce sizes. Tags: funny christmas,rude christmas,adult humor mug,xmas party mug,funny xmas mug,rude humor mug,adult christmas,christmas humor,xmas humor mug,funny adult mug,humor christmas,rude xmas mug,funny party mug