The song "Dumb" by Jazmine Sullivan is about a person who discovers that their partner is not being faithful and is lying to them. The lyrics express the speaker's frustration and disappointment in their partner's actions. The song starts with the speaker confronting their partner, telling them that they know they are not right and aware of their infidelity. They express the desire for their partner to stop lying and be honest with them. The speaker even knows where their partner was the previous night, implying that they have evidence of their partner's unfaithfulness. The chorus repeats the word "dumb," highlighting the speaker's disbelief and frustration towards their partner's actions. The speaker believes that their partner is foolish for thinking they can deceive them. The song also addresses the speaker's dedication and care for their partner, despite their unfaithfulness. The speaker questions if they deserve to be treated this way, expressing feelings of betrayal and being taken for granted. They mention how they have taken care of their partner and have always been there for them. However, the speaker warns their partner that if they continue treating them poorly, they will leave. They no longer want to be fooled and are tired of playing games. The song features a verse from Meek Mill, where he responds to the accusations and tries to explain himself. He acknowledges that he is not being right but assures his partner that he is committed to her. He expresses his loyalty and asks her to trust him. Overall, "Dumb" is a song about realizing the truth of a partner's infidelity and deception. It conveys the speaker's frustration and their decision to not tolerate being treated this way anymore.