A person who is always (or frequently) erect
Person: Jack was being such a jack during passing period
Has the biggest shlong in town and mad abs
Hi Jack your dick is so big can I hold it
A jack can be a lucky guy to be with if you find the right one . If you do he is the most loving person ever and wants to spoil you rotten but on the other hand I’d you find a different jack , he is a disgusting cheating dickhead .
Girl one : Who’s that ?
Girl two : That’s jack , he’s so kind and sweet and generous .
Or
Girl one : ew who’s that ?
Girl two : oh that’s jack , player for sure .
A sweet person who doesn't think of himself. Who may have a crush, but to shy to tell her. If you know one hold on to him. You are a lucky one.
My boyfriend Jack had gotten me the sweetest gift ever!