When you chose two people in a fandom to be romantically paired, no matter what gender or sexuality or age or state the characters are. Many people have multiple OTP's.
by just_look_at_all_the_otaku_ October 25, 2014
Get the OTPmug. OTP stands for On-Time Performance, in train lingo. It refers to the number of times that a given train, or railway company, had late trains.
The OTP is usually given in a percentage value, and refers to the percentage of trains that were "on time". Whether a train is on time or not depends on how long the route is. A train from Toronto to New York City has about 10 minutes leeway, but a train from New York to Florida would have to be about an hour and a half late before it was officially considered "late" in the books.
The OTP is usually given in a percentage value, and refers to the percentage of trains that were "on time". Whether a train is on time or not depends on how long the route is. A train from Toronto to New York City has about 10 minutes leeway, but a train from New York to Florida would have to be about an hour and a half late before it was officially considered "late" in the books.
Canadian National had an OTP of 86% last year.
by That Train Guy March 14, 2009
Get the OTPmug. Kids, don't forget your OTPs on our trip. I don't want to use my phone for all of our vacation photos!
by phunlee January 16, 2011
Get the OTPsmug. 
OTP stands for "Over The Pants." It is often used in the context of distinction for a subset of sexual favors - those that are performed "over the pants."
"Sara is so awesome. She gave me an HJ OTP behind the gym yesterday after class. My underwear was stuck to my leg the whole way home."
"Lisa learned in school that you still need to use a prophylactic when giving a BJ OTP."
"Lisa learned in school that you still need to use a prophylactic when giving a BJ OTP."
by noirollorion October 13, 2013
Get the OTPmug.