yeah boyeeeeeee
Direct translation is "yes, my friend". Could mean "you da man," "awesome! and "yippe di do da!".
Mr. A: "I finally asked Ms. B out for a date."
Mr. YB: "yeah boyeeeeeee!"
Mr. T: "I pity the foo'"
Mr. YB: "yeah boyeeeeeee!"
Mr. YB: "yeah boyeeeeeee!"
Mr. T: "I pity the foo'"
Mr. YB: "yeah boyeeeeeee!"