i tell you what
A phrase used by people who think they’re important. It’s like a fancy hat for your words, but way more annoying. It’s also used by people who think they’re fancy.
I tell you what, I’m gonna be the best man at my brother’s wedding and I’m gonna wear a hat.
I tell you what, I’m gonna eat this pie and then I’m gonna talk about it on TV.
I tell you what, I’m gonna win this race and then I’m gonna tell everyone about it.