A phrase commonly used to confirm a statement or question when completely sure of oneself. If said with a condescending tone, "oh absolutely" can be an indication that the speaker is a tool. Often used by know-it-alls and douchebags.
Person 1: Hey, does the University of Pennsylvaniahave a good business school?
Tool: Oh absolutely! The idea that you would even think otherwise is completely ridiculous and shows that I am far superior to you.
To be worn out by spending your time next to someone with no "banter". Talks exclusively about things you could not care less about. Often harmful to mental health.