The increased use of social media has motivated spammers to post their malicious activities on social network sites. Some of these spammers use adult content to further the distribution of their malicious activities. Moreover, the extensive number of users posting adult content in social media degrades the experience for other users for whom the adult content is not desired or appropriate. In this paper, we aim to detect abusive accounts that post adult content using Arabic language to target Arab speakers. There is limited natural language processing (NLP) resources for the Arabic language, and to the best of our knowledge no research has been done to detect adult accounts with Arabic language in social media. We used a statistical learning approach to analyze Twitter content to detect abusive accounts that use obscenity, profanity, slang, and swearing words in Arabic text format. Our approach achieved a predictive accuracy of 96% and overcomes imitations of the bag-of-word (BOW) approach.