Definition of me-tooer in English:

me-tooer

Pronunciation /ˌmiːˈtuːə/

noun

informal, derogatory US
  • A person who acquiesces in, adopts, or imitates a view or policy (especially a successful or popular one) proposed or championed by another (usually rival) person or party; (more widely) a person who rushes to follow a trend.

Origin

1920s. From me too + -er.