This word is native to Philadelphia. The "bloagie" is a term used to describe oral sex performed by a woman on a man while he is eating his hoagie of choice. The hoagie is usually an Italian or Provalone Cheese hoagie. Note: Never share your hoagie with the female performing the act, it will take weeks to wash the smell of onions and sliced italian deli meats off of your phalis.
"Shelly gave me an awesome bloagie yesterday!"
"I could really go for a nice bloagie."
"Look at her lips, I'm kind of hungry, how bout' a bloagie?"