søk opp hvilket som helst ord, som sex:
 
1.
Extremely stupid person, someone who acts as if they've already donated their brain to science--before they die. Clueless. Dumb as a rock.
OK, what brain donor thought it would be a good idea to leave beer in the freezer overnight??
av JJRtwu2009 8. desember 2008
 
2.
a person who gives a lot of brain/head/blowjobs
Mary is a brain donor.
av stiff 10. oktober 2004