Best used among friends or in casual conversations, not in formal settings. He's being such an a-hole, excuse my French!
Pro Tip 2/3
Humorous Effect
Often said with a slight humor to lighten the impact of the swear words. This is some damn good cake, pardon my French.
Pro Tip 3/3
Attention Grabbing
Can be used to make sure listeners understand the word or phrase isn't typically part of your vocabulary. What the hell is that supposed to mean, excuse my French!