Definition
To act shamelessly is to behave without shame or embarrassment, often in a way that others find offensive or immoral. It indicates a lack of concern for social norms or propriety. It's like asking for extra fries at a restaurant without a hint of guilt. Often, it implies a selfish motivation. Shamelessness can be amusing, shocking, or infuriating, depending on the situation. It's the opposite of being reserved or modest.