A person who claims to be a fan of Folk Legend Bob Dylan, but in actuality they know and like a few songs and are quite unaware of the real genius that is Dylan. They also use this love and faux knowledge of Bob Dylan to seem cool and hip in certain settings.
How a Pretentious Dylan Lover came to like Bob Dylan can be explained in a number of ways. A boy they liked could have played a Dylan song on the guitar, or they could have seen Watchmen. What ever the reason they have normally only been aware of Dylan for a few weeks and want every one to know that they know and like Bob Dylan. Bob Dylan!
A Pretentious Dylan Lover will be excited about a new Bob Dylan album, or tour, where as everyone else knows there is nothing to be excited about. A Bob Dylan song could come on the radio and a Pretentious Dylan Lover would be unaware that the song is by Bob Dylan- that is how most Pretentious Dylan Lover are in fact found out.
She doesn't really like Bob Dylan, she is just a Pretentious Dylan Lover.