Big Papi famous quote T-shirts on sale. Hey, it’s for a good F’n cause

David Ortiz gave his famous f'n speech on April 20, 2013.

Michael Ivins/Boston Red Sox/Getty Images

Who can forget David Ortiz’s "This is our F’n city" speech.

Well, Big Papi is putting his famous quote to good use by selling T-shirts with all proceeds going to the David Ortiz Children’s Fund (DOCF).

The DOCF has been raising funds that enable children in Ortiz’s home country of the Dominican Republic and children in the New England area to have access to pediatric critical care. The foundation has trained close to 400 nurses who care for approximately 14,000 children a year admitted to Robert Reid Cabral Children’s Hospital in Santo Domingo, D.R. The DOCF has also paid for over 200 life-saving heart surgeries in the Dominican Republic.