Confusing expression of love/admiration for a woman. Similar to boys pulling a girl's
hair on the playground. He really cares for her, but is uncomfortable/
awkward about expressing the emotion. This euphemism that sounds vaguely degrading is known to
mean that he's actually really in to her.
Can also be used in the accusatory "He'd pee on her porch" - used to call out a "
bro" for his love without outright embarassing him and having uncomfortable conversations about real feelings, which should, obviously, be avoided at all times.