There's Fuckface, of course, when you first name yourself.
There's Patrick, when you first meet Patrick.
There's Oscar, when making out with Tara on Halloween.
There's Lucky, when taking a bath with Jill.
There's Jody, when telling Neil about the throuple.
Then there's the last names you give Sage that also get a reaction.
Burke, Morgan, Morgan Burke, Burke Morgan, Roberts, Taylor, Bailey, Royce, and Burgmeister are all off-limits, seeing how they're the last names of the Main Girls (and Burgmeister is just so unlikely

).
Then there’s the last names of famous Neils: Armstrong, Young, Diamond, and Peart. There's also Steele, I guess because it rhymes? Apparently there is a Neil Steele Band, but doesn't seem too famous.
There's also Neil, as in your dad's name is Neil Neil

And last but not least, there's your MC's name, which would make you MC MC