do you mean
'when you want to talk like an adult and not like a child'?
yes i suppose that is quite pretentious.
(Mortal Wombat - he's just an excitable boy, Wed 8 Jun 2011, 21:00, archived)

No.
He means when you want to try and hide talking shit behind long words because no one will notice that the long words are just long words for talking shit.
( baldmonkey a frothy foul-smelling vaginal discharge, Wed 8 Jun 2011, 21:10, archived)

yes
i suppose three syllables is a bit long for some :/
(Mortal Wombat - he's just an excitable boy, Wed 8 Jun 2011, 21:12, archived)

FRESH!

( baldmonkey a frothy foul-smelling vaginal discharge, Wed 8 Jun 2011, 21:14, archived)