マFreq.FrequencyTop 5,000Meanings1expressionfor real; seriously; no capabbreviationslangSlang abbreviation of マジ, used in casual speech and online communication to express sincerity or emphasis.See also: マジマで?それ本ほん当とう?For real? Is that true?マでやばいよ、あの映えい画が。Seriously, that movie is amazing.