A grant moment may qualify as a person saying a very unique one liner especially in a way that is retarded, funny, and something you would not expect.
Example 1
Person A: *calls Person B*
Person B: I'm gyming fucktard
Person A: that is such a Grant moment
Example 2
Person A: Good morning, I hope your morning wood is oak
Person B: That is such a Grant Moment
A person who is white, but looks Hispanic and is treated as such
Person A: That guy looks Mexican
Person B: No bro! Heâs white. He has Wyatt Syndrome