A lurch describes a person who is socially inept. This can be with girls, guys, new people or all three. The degree of their lurcheyness is usually specified by an adjective with lurch commonly being the latter.
Examples of adding an adjective would be:
The word lurch originates from the Adams family character Lurch. Lurch was known for looking like Frankenstein and also for making inarticulate moans as a way of talking.
-Look at the person over there sat quietly in the corner
-Haha what a lurch!