Uncle Tom
1 of 2noun
Un·cle Tom ˌəŋ-kəl-ˈtäm 
1
disparaging : a Black person who is overeager to win the approval of whites (as by obsequious behavior or uncritical acceptance of white values and goals)
2
disparaging : a person who is overly subservient to or cooperative with authority
the worst floor managers and supervisors by far are women … Some of them are regular Uncle Toms
Jane Fonda
Jane Fonda Uncle Tomism
ˌəŋ-kəl-ˈtä-ˌmi-zəm
noun Uncle Tom
2 of 2verb
Uncle Tommed; Uncle Tomming
intransitive verb
disparaging
: to behave like an Uncle Tom
Word History
Etymology
Noun
Uncle Tom, pious and faithful Black slave in Uncle Tom's Cabin (1851–52) by Harriet Beecher Stowe
First Known Use
Noun
1852, in the meaning defined at sense 1
Verb
1933, in the meaning defined above