noun
35-to-49 male demographic
Marketing term for men aged 35 to 49, used in audience targeting and consumer analysis.
この番組はＭ２層をターゲットにしている。
This program targets the 35-to-49 male demographic.
From English 'M2', where 'M' stands for 'male' and '2' indicates the second age bracket (35–49).