Self-conceited in a sentence as an adjective

Is this a good time to flag HNs self-conceited hive-mind ?

Oh really?Pray tell me, oh self-conceited one, what I missed that is both in actual use and in that book ?

The 'Brown Babus' are little more than self-conceited idiots wearing fancy suits.

Before you make your self-conceited, complacent argument make sure you don't render yourself stupid next time.

Is a god of earthly knowledge and physical might, created by Altjira to ensure that people did not get too arrogant or self-conceited.

Self-conceited definitions

adjective

characteristic of false pride; having an exaggerated sense of self-importance; "a conceited fool"; "an attitude of self-conceited arrogance"; "an egotistical disregard of others"; "so swollen by victory that he was unfit for normal duty"; "growing ever more swollen-headed and arbitrary"; "vain about her clothes"

See also: conceited egotistic egotistical swollen swollen-headed vain