Examples of very lazy songwriting/lyrics.
We'll get this straight. The most lazy example of song lyrics is
"Put your hands up in the air, and wave them like you just don't care". (lyrics may vary)
Usually used by rather inept rappers who start to freestyle but then use that line as a bail-out when they realise it's all going belly up, or used by boy bands who try to rap.
Other examples of lazy lyrics...
Rhyming the word "waiting" with "anticipating" and "hesitating".
Persistent rhyming of words ending in "ation" (See Sum41, Stereo MC's, The Shamen)
Every lyric Avril Lavigne has written or will ever write.