angry boner 

1. used to describe the usually unwanted erection which only occurs with high levels of stress or anger.
2. can also be used to describe situations in which there has been anger or drama, but overall still quite amusing.

1. 'oh dear..... hes got an angry boner' or 'he was so pissed off he got an angry boner'
2. 'it was a bit of an angry boner night'

angry boner by castleton February 9, 2009