2 sentences

1. 他整天假掰地在那儿炫耀。

   tā zhěng​tiān gēi​bāi de zài nà​r xuàn​yào.

   He is showing off pretentiously all day long.

   Source: Dong Chinese Dictionary

2. 他那副假掰的样子真让人感到不舒服。

   tā nà fù gēi​bāi de yàng​zi zhēn ràng rén gǎn​dào bù shū​fu.

   His pretentious manner really makes people feel uncomfortable.

   Source: Dong Chinese Dictionary