Abbreviation, or rather a lazy form of the English word 'Good'.
PS: Usually used by users from South East Asia.
Example:
<Shinosuke Wow.. gud day isnt it?
<Person1> YOU again, leave me alone!
<Shinosuke okok.. bye.
Something mama Alan says when greeting his friends/children
Children/friend:hi
Alan:WAS GUD
short term lingo for the word 'Good'
"I'm moving to florida!"
"Gud."
An adjective to describe someone who is better than the greatest
Wow he is so gud. Nobody can get gudder than he is. He is the guddest
Gud is used in a sarcastic way. It replaces the word 'good'. Often used if someone makes a mistake.
Person 1: I fell over today.
Person 2: You're gud.