By the way I feel like you when I can't remmember something."Git me a Wild Turkey and 7-up and I'll think about it." is a colloquial phrase meaning "give me a drink and I'll consider your request" or "let me have a moment to think about it." It is often used in a sarcastic or lighthearted manner.
Yes, it is a common saying, particularly in the southern region of the United States. It is often used in informal settings among friends or acquaintances.
Wild Turkey is a brand of bourbon whiskey, which is a type of alcohol often associated with relaxation and taking a moment to think. Therefore, it is likely used in the phrase to emphasize the idea of taking a break or having a drink before considering something.
7-up is a type of lemon-lime flavored soda, which is often mixed with whiskey to make a cocktail. The mention of 7-up in the phrase could be a nod to the tradition of mixing Wild Turkey with 7-up.
It is not recommended to use this phrase in a professional setting, as it is considered informal and may not be appropriate in certain contexts. It is better to use a more direct and professional way of expressing the same sentiment.