Abbreviation for Blood Slut Levels. A technical term associated with a spike in sexual activity, often associated with feelings of guilt, sexual infections, and a risk of unwanted pregnancy. BSLs tend to peak in the early to mid 20s, then fall back down. However, there have been many cases noted that occur later in life (40-45), often involving women.
Margot's BSLs have shot through the roof this summer, she needs to settle down or risk getting pregnant.
by James426 September 3, 2012
Get the BSLmug. 
Man I wanna give that buttaface some BSL!
La'Quisha: Tyrone how u want it tonight, a lil BSL?
Tyrone: Hell yeah bitch, ima skeet all over dat!
La'Quisha: Tyrone how u want it tonight, a lil BSL?
Tyrone: Hell yeah bitch, ima skeet all over dat!
by nasty nate 69 August 30, 2005
Get the BSLmug. Big Straight Lies- These are lies that are the nastiest and falsest lies of them all. The thought of uttering them repulses everyone around them.
by acronymgoddess December 14, 2018
Get the BSLmug. by DylanbfromPP August 23, 2009
Get the BSLmug. Bull shit life.
The 2011 equivalent of FML.
Used to describe such lifestyles not worth the time and effort.
The 2011 equivalent of FML.
Used to describe such lifestyles not worth the time and effort.
You: Hey ladies. What's up?
Ladies: *Flip the bird*
You: No one fkn talks to me. I'm like a Jehovah in an Atheist neighborhood. I've got a BSL.
Ladies: *Flip the bird*
You: No one fkn talks to me. I'm like a Jehovah in an Atheist neighborhood. I've got a BSL.
by Frawnsay910 April 22, 2011
Get the BSLmug. A laboratory that contains the deadliest viruses known to mankind. These viruses are Ebola, Marburg, Lassa, Hanta, Smallpox, Crimean hemorrhagic fever, Argentinean and Bolivian hemorrhagic fevers. So any disease that makes you bleed to death, you should wear a positive pressure suit not to catch it.
by Gio Bandito February 25, 2015
Get the BSL-4mug.