The page was started by American woman Kate McClure, 27, who was driving into Philadelphia last month to visit a friend when her auto ran out of petrol.
McClure said Johnny would return with a red gas can, having spent "his last $20 to make sure I could get home safe".
McClure still felt compelled to do more for Johnny, so she created a GoFundMe account, hoping to raise $10,000 to help get Johnny a auto, an apartment and some materials and amenities. McClure pulled over and began to worry until a homeless man approached her.
Kate McClure was driving to Philadelphia one night when she ran out of gas on Interstate 95.
He says now he wants to get a job at the Amazon warehouse in Robbinsville, New Jersey, and hopes to one day become recertified as a paramedic. Stranded on a deserted highway just before midnight, she managed to phone her boyfriend Mark D-Amico, 38 and asked him to come and get her.
As well as setting up the crowd funding page for him, Ms McClure has frequently returned to visit Mr Bobbitt Jnr with gifts of food and clothing.
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It was during this time that she learned more about Bobbitt Jr and resolved to get him back on his feet, but did not anticipate the level of generosity from the public.
After a few visits, she started a fundraiser with the hopes of using the money toward housing and other expenses for 34-year-old Bobbitt.
Donations have poured in, and the fundraiser has shattered its goal of raising $10,000 for Bobbitt. He said he moved to Philadelphia previous year with plans to start a new job, but when things fell through, he became homeless.
Johnny is a former ammunition technician, according to the Associated Press.
However, his life took a turn for the worse that left him homeless in Philadelphia for the last 18 months.