The term 'BAD LOVER' can be summarized by two crossword solutions: SATAN and DEVIL. Both words refer to a figure in many religions, particularly Christianity and Islam, who is seen as the embodiment of evil and the enemy of God and humankind. SATAN is derived from the Hebrew word for 'ADVERSARY' or 'ACCUSER, ' while DEVIL is derived from the Greek word for 'SLANDERER.' Both words are used to describe someone who is not a good LOVER, either because they are deceitful or because they are malicious.