Mobbing in the context of human beings means bullying of an individual by a group in any context. Identified as emotional abuse in the workplace, such as "ganging up" by co-workers, subordinates or superiors, to force someone out of the workplace through rumor, innuendo, intimidation, humiliation, discrediting, and isolation, it is also referred to as malicious, nonsexual, nonracial, general harassment.

Mobbing can take place in any group environment such as a workplace, neighbourhood or family.

Though the English word mob denotes a crowd, often in a destructive or hostile mood, German, Spanish, Polish, Italian and several other European languages have adopted mobbing as a loanword to describe all forms of bullying including that by single persons. The resultant German verb mobben can also be used for physical attacks, calumny against teachers on the internet and intimidation by superiors, with an emphasis on the victims' continuous fear rather than the perpetrators' will to exclude them. The word may thus be a false friend in translation back into English, where mobbing in its primary sense denotes a disorderly gathering by a crowd and in workplace psychology narrowly refers to "ganging up" by others to harass and intimidate an individual.