The act of fornication.
This term was first established by two Pasadena, Maryland residents, during a playful argument. Later, this term was commonly used between the two, and eventually spread amongst many other people.
Jeez, can't you guys go find somewhere else to jaegle??
After dinner, he took me to his apartment and we jaegled like three times!
Dude, are those people jaeglling in the pool?!?