guilt trip

noun
1.
Informal. a feeling of guilt or responsibility, especially one not justified by reality.

guilt-trip

[gilt-trip] /ˈgɪltˌtrɪp/
verb (used with object), guilt-tripped, guilt-tripping.
1.
Informal. to attempt to instill a guilt trip in; play upon the guilt feelings of.
See also guilt (def 4).
Origin
1975-80