1) Lifting freeweights, origianally all made of cast iron. Some are now plastic.
2) Arnold movie about the first definition.
"Can't go out tonight, I'll be pumping iron at home."
"Have you ever seen pumping iron?"
212๐ 50๐
To have brutal sex with the opposite gender.
"I can't picture you pumping iron with a man."
25๐ 124๐
To lift weights; to engage in weight or strength training. To work out.
Hot chick at the gym: "OMG! You are so buff!!"
Buff Guy: "Ya babe, I pump iron."
68๐ 3๐
Having vaginal intercourse with a menstruating female.
"I had to change my sheets because I was pumping iron with Sara last night"
38๐ 20๐
Pour and/or drink an Iron City Beer
I'll meet yinz dahn da beer garden ta pump-an-iron.
Man, it's been a rough night. Time to go pumping the midnight iron.
4๐ 7๐