1.) One whose mother has amazing zoinkers
3.) One who has been known to motorboat buttcheeks
1.) "You like hot moms? Then let's go to Evan's house. He's a Gieselman."
2.) "Why is that grown man still playing video games with the kids? Oh - He's a Gieselman. Gotcha."
3.) "Nah man, Evan hasn't been eating chocolate. He's a Gieselman."