A metaphor to describe the quality or enjoyment of sexual activities with female, almost always but not necessarily involving the vagina.

Alternatively can be used to explain the pleasure of a meal.

*note: tuna can be changed to pork if describing sexual contact with a male.
Example 1:

Friend: Did you pull last night?
You: Yeah man!
Friend: How was it?
You: Let's just say it was good tuna

Example 2:
*During intercourse with a female*
Internally to self: Oh yeah, that's good tuna.
by definitelythatguy April 7, 2018
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A good guy is a nerdy guy that turns into a hot sexy badguy in a tik tok video.
Guy 1: Dude did you see that vidoe of Jacob becoming sexy and cool on tik tok?
Guy 2: Yeah! he's so cool now, what happened he was such a good guy before!
by 7ven11ven October 10, 2018
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Arson. Arson is #TheGoodGuy. He represents GGG(Good Guy Gang) He's the only member of that gang, there's only one flag and he has it.
All women : Arson is such a good guy
by Dimera October 29, 2019
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What the Good Guy says when hes kissing your ass.
Good Guy- He's a Good Guy. I work with him up there.
by ButchNochance February 9, 2022
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An exclamation of surprise when seeing something disgusting.
I explained, "Goodness grossness!" when the rather large when bent over and her phone peaked out.
by Kjahnke812 July 18, 2017
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