papaya__'s questions

How do you say this in Simplified Chinese (China)? youngest child. (I know 老大 is eldest and 老二 is second eldest)

How do you say this in Simplified Chinese (China)? flex (as in to flex your muscles)

How do you say this in Simplified Chinese (China)? old money style (for clothing)

How do you say this in Simplified Chinese (China)? tartare

How do you say this in Simplified Chinese (China)? to sit on the fence (idiom)

How do you say this in English (US)? What is the equivalent of 心理作用 in English?

How do you say this in Simplified Chinese (China)? a pick me boy