look up any word, like cleveland steamer:
 
1.
An oxymoron. A paradox.

The school bell is the joyless and repulsive sound of the beginning of the school day.

Yet, it is also the beautiful sound of freedom at the end of the day.
8:00 am
*School Bell rings*
Alfonso: Fuck, it's time for another shitty day at school.

3:00 pm
*School Bell rings*
Alfonso: Ahh the sweet sound of liberation.
by limechime99 March 04, 2010
 
2.
When your partner grabs your penis and proceeds to shake it back and forth like an old school bell. Usually performed under stressful conditions.
My girlfriend was tugging at my man meat and felt so good until I called out her sister's name, then she gave me a school bell
by The Firezombie February 26, 2009