Simplify the following text for a Grade 6 native English-speaking person.
Original: The music video for `` Gump '' is a double parody of both the movie Forrest Gump and the Presidents of the United States of America 's music video for `` Lump '' .
Simplified: `` Gump '' is a song by `` Weird Al '' Yankovic . It is a parody of `` Lump '' by the Presidents of the United States of America .