SECRET SANTA XMAS JOKES BOOK (53 ratings) £9.99 Out of stock. The perfect bah humbug christmas mug Add a Filthy Sentiments Mug to your kitchen or office, not for the sensitive souls out there, our filthy mugs come adorned in our very popular rude quotes, that aren't for the faint hearted! Our quirky mugs have the popular Filthy Sentiments quotes printed onto them. Remember... say it the filthy way. Please triple check your spelling and grammar before checking out!