Falling in love with you takes less time than my DNA takes to replicate.
What does someone mean by a light year? The same as a regular year, but with less calories and fat.
Roses are red,
Violets are blue,
White wine costs less,
Than dinner for two.
Why did they stop giving the horse grass?
They wanted it to be less green.
The more suicidal people there are the less suicidal people there are.
What is a lightyear?
The same as a regular year, but with less calories.
Not to brag, but I beat the state chess champion in less than 5 moves.
Finally my high school karate lessons came to some use.
How much does a Polar Bear weigh?
I don't know.
About ten pounds less than you, fat-ass.
My cow gives less milk,
now that it has been eaten,
by a fierce dragon.
Why have less scato when you can have mo’ scato?
Contrary to belief, Wikipedia actually has less factual errors than traditional printed encyclopedias.

Source: Wikipedia
Yo Momma so stupid she thought a lightsaber had less calories.
A couple had been debating the purchase of a new auto for weeks. He wanted a new truck. She wanted a fast little sports-like car so she could zip through traffic around town. He would probably have settled on any beat up old truck, but everything she seemed to like was way out of their price range.

“Look!” she said. “I want something that goes from 0 to 200 in 4 seconds or less. And my birthday is coming up. You could surprise me.”

So, for her birthday, he bought her a brand new bathroom scale.
I recently got a new job as a golf caddy, but I was fired after less than an hour.
The guy asked me for a sand wedge. I don't think he likes pickle.
"The longer we are together, the less serious I am about you."