fun-raising 

fun: amusement, enjoyment or pleasure.

fundraising: an event undertaken to get money for a particular activity, such as equipment for extracurricular sports programs, or to defray laboratory costs (salaries) for research of a cure for a particular disease.

e.g. This year's fundraiser will be a walk-a-thon.

fun-raising: an amusing, enjoyable, or pleasurable event undertaken to get money for a particular activity, such as equipment for extracurricular sports programs, or to defray laboratory costs (salaries) for research of a cure for a particular disease.

Let's go to a supermarket and buy some packages of Nestle Baby Ruth fun size candy bars, so that we might go do some "fun-raising!"

fun-raising by [e-mail] December 26, 2012

fundraising 

When your too lazy to get a job to pay of your student loan or stand on a corner begging for money, so you set up a fundraising site instead.

How are you going to set up a fundraising page, when you don’t even have a job?

fundraising by Adulting hard May 3, 2018

fundraising terrorist

a person involved in a fundraiser who continuously hounds his or her friends and family until they have successfully convinced them to donate their money. this continues until those involved refuse to leave their homes or answer their phones in fear of more financial loss.

friend 1: "dude, you haven't left your house in 3 days"
friend 2: "i can't risk going outside. there's a fundraising terrorist on the loose, and i don't get paid for another week."

fundraising terrorist by anthubc2010-fundraisingterror October 9, 2010