IPA: /ˈkrɪn.dʒər/
KK: /ˈkrɪnʤər/
A person who feels uncomfortable or embarrassed and often shows it by shrinking back or avoiding eye contact.
He is such a cringer that he avoids speaking in public.
Cringer → The word 'cringer' is derived from the verb 'cringe' (from Old English 'cringan', meaning to fall or yield) combined with the agent suffix '-er' (meaning a person who). A cringer is a person who yields or shows submission, often in a servile manner.
Think of someone who 'yields' ('cringan') in a submissive way — that's why a cringer is someone who shows excessive submission.