Being a broke college student can make it hard to go out and do fun things with your friends. Everything is either too expensive or not fun. My friends and I have had this issue many times. Here's some ideas from my friends and I that we enjoy and won't break your bank.
Visit a park
My friends and I love to visit our nearby state park and just walk the trails and take in nature. It's a great way to enjoy the outdoors and each other
Watch crappy movies
On Demand has plenty of free titles to watch, and they are perfect to make fun of. Curl up on the couch with each other and laugh at the crappy effects and random dialogue.
Go through old papers from Elementary School
I have a few diaries from Elementary School and they are the funniest things to look through. Gather your Yearbooks and binders from your early days and just look through old memories to reminisce and laugh.
Get cheap baking kits
Dollar stores always have cheap cookie kits where you just add a stick of butter and an egg and it's an easy way to get a delicious treat.
Give each other make overs
Whether you want to make your friend look glamorous or monstrous, giving them a make over is a fun way to pass the time.
Have a bonfire
Most likely, if you live in a more rural area, you have a friend or two with a yard big enough for a bonfire. Bonfires on summer nights are quintessential, and you can tell each other spooky stories around the campfire.
Camp in the yard
Keeping with the big backyard theme, sleeping under the stars is a fun activity on a summer night. Grab your sleeping bag and relax in the moonlight.
Write a play/story
Odds are you and your friends have a few inside jokes. Turn those inside jokes into a story that you can all laugh about for years to come. If you make it a show, perform it for family members!
Try the blindfolded taste test challenge
This is something my friends and I have done at about 2 in the morning, with me being the ringmaster because I'm a wimp. Gather a few things from the fridge and have your friends try them blindfolded. Have them draw numbers correlated to the food to make it more random and funny.
Check out a local zoo/museum
Most zoos and museums have free days, so check them out with your friends on those days and learn something new!
Visit your local beach
Many beaches are free to visit, so spend a day on the sand with friends and enjoy the waves!
Just enjoy being together
As long as I'm with my friends, I'm having a good time. We always laugh at whatever one of us says and we talk to each other all the time. Just being in their presence makes me happy, so just sit back, relax, and enjoy being with some of your best friends.