根据权威的无厘头的urban dictionary,摘录如下：
first love
one person who is and always will be the first person you truly fell in love with.you will know u have found your first love when u cannot stop thinking about him or her and all you do is spend time with them and have a good time.
puppy love
The love between a young couple within a few weeks of getting together. Not really true love, more blind affection - immature, young love. Tyically occurs before one person becomes a bi*ch.