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1.
A person who does all the talking to other people. No one ever starts any conversations with the person because they know he/she will talk to them first. Many times these people talk too much and end up saying something that another person does not like. Spend Overs think they can get any girl/guy they want but end up getting rejected.
At the club this ugly girl was talking to me the whole night so i just called her Spend Over Jasmin
by G-Mayne#1 January 20, 2011
 
2.
Another way to say sleepover.
Sounds classier and less girly.
"you can spendover after the party if you want"
by cantresisttheclick July 04, 2009