mama's boy; excessive attachment to one's mother
Wasei-eigo from 'mother complex'. Refers to a person (often male) who is overly dependent on or attached to their mother, or the condition itself. Not a clinical term; used in everyday conversation.
wasei-eigo (Japanese-coined English), from mother complex
He's a mama's boy and consults his mother about everything.
He has a strong mother complex, so marriage might be difficult for him.
Oedipus complex; sexual attraction to one's mother
Psychoanalytic term, often used synonymously with エディプスコンプレックス. In casual Japanese, マザーコンプレックス can also carry this meaning, though sense 1 is far more common.
See also: エディプスコンプレックス
In Freud's theory, the Oedipus complex appears during a boy's developmental stage.