An advertisement unquestioningly written for a male audience/client, usually augmented by an excessive display of female flesh to make it popular with either/both parties.
Did you see the new Lynx advert? The girls were pretty much naked!" "Don't worry, Sally, that was just a bit of ladvertising. I'm sure Robbie appreciated it, even if you didn't.
Advertising your ladish traits to the opposite sex.
i.e. Using Ladish behaviour to try and impress a girl.
person 1: See that guy down a litre of vodka?
Person 2: Yeah man, he was LADvertising to those girls!