look up any word, like eiffel tower:
 
3.
Used to prevent your cack from dropping off after banging sheisty bizzos.
I need to swing by the Walgreen's to swipe some of them prophylactics before I head over and drop the hammer on that crusty bitch Colleen's ass.
by Bill October 28, 2004
 
1.
a condom, rubber, jimmy hat, etc.
Mr. Gravitz put a propylactic on his large member before hittin it with her.
by Becksta December 27, 1999
 
2.
an odd type of scientific slang. refers to condoms.
"can i get a prophylactic? ...a prophylactic? ahhhhh *whatever*"
by tto005 March 23, 2009