Here's a breakdown:
* Mock: This implies that the casualness is not genuine. It's an imitation or a pretense.
* Casual: This refers to a relaxed and informal style of communication.
Think of it as someone trying to fit in with a group by using slang or overly familiar language, but their effort feels unnatural and even slightly off-putting. It suggests a lack of genuine ease or familiarity.
Examples of how "mock casual" might manifest:
* Using slang or colloquialisms incorrectly. Someone might try to use slang that is outdated or not appropriate for the situation.
* Overusing casual greetings or interjections. For example, saying "Hey, dude!" to someone they just met.
* Affecting a relaxed posture or mannerisms that are not genuine. This might involve slouching, using exaggerated hand gestures, or speaking in a drawl.
* Using overly familiar language with someone they barely know. This could involve calling someone by their first name or using nicknames, even if they've only just met.
Overall, "mock casual" suggests a lack of authenticity and an attempt to appear more relaxed or approachable than the person actually is. It can make the speaker seem insincere, pretentious, or even condescending.