Secret, clandestine. Alternate definition, confused, disorderly.
Early 16th century: probably related to huddle and to dialect mucker ‘hoard money, conceal’.
“He knows something and he’s being all hugger-mugger about it!”
Something or someone that one vehemently dislikes/ A strong curse.
Early 16th century: from ecclesiastical Latin, ‘excommunicated person, excommunication’, from Greek anathema ‘thing dedicated’, (later) ‘thing devoted to evil, accursed thing’, from anatithenai ‘to set up’.