"We'd", a legitimate English contraction, meaning "we would".
I'm sorry, but it's "Dude", not "Dud".
The "E" at the end changes the meaning and the pronunciation.
The phrase would've been better rendered as follows:
USED IN A SENTENCE:
Honestly, Dude, when your attempting to attack people's intelligence, spelling all the words in your attack statement properly will at least get you started without making yourself look silly.