When a guy isn't over his ex-girlfriend so he starts sleeping with a tall pretty blonde girl with the intention of:
a)pissing off his ex
b)impressing his friends
A Trophy-blonde has to have:

-long blonde hair, bubbly personality
- very affectionate/sexy
-is the epitome of what many girls are subconsciously intimidated by in other women
(doesn't work if ex is also a tall blonde)