For research purposes 

An expression often used by men online who want to know the name of a certain video or person so they can store it in their spank bank.

It's synonymous with saying, "so I can fap to this later on."

Can anyone tell me the name of that girl in the video with the big boobs? For research purposes, of course.

For research purposes by Sanguivorant March 30, 2015

for research purposes 

When a man/woman asks about the name of someone, most likely women, or the name of something, so they can look it up and check them or it out.

Person One: I just found this picture of some hot girl, check it out.
Person Two: Can you send me that pic via e-mail for research purposes?

for research purposes by WordsForDummies May 23, 2015