Slang to describe unintentionally low hanging pants and underwear, to an extend that the rear is partially visible to others. Expression preferably used to raise someone's attention on that in a teasing manner without majorly embarrassing him / her.
When a woman is getting an abortion and changes her mind part-way through, but the baby is just not the same anymore, that's a partially aborted fetus.
"Mommy's decision to go through with her partially aborted fetus cost lil' Timmy an arm and a leg."
When the penis of a homo sapien reaches at least thirty percent maximum capacity of the corpus cavernosum with blood flowage
This morning i woke up with a partial boner.. before it went away,I opened up my bedroom window and showed it to the birds foraging for grubs in the garden below.