not good enough or un-sufficient

not good enough, shits bad, looking all bad, NOT on point.

Can be used as a term to bag someone out about their less-than-average size penis

A person who feels inferior beacuse they recive less text message action than their friends or work colleagues.

when you are not satisfied by your sexual encounters, usually because:
A. your partner sucks
or
B. you take your fantasies way too far and reality just isn't good enough for you anymore :'(

I feel very inadequate these days