Some days ago I bumped into a non-official, Italian version of the song for the Lava short by Pixar about a volcano that keeps waiting for someone to love. The original song makes a pun between the words lava and love. This version tries to keep the pun with the following verses:
Io so che nel mondo per me c'è un amore
che magma con tutto il suo cuore.
I enjoyed the song very much but my knowledge of Italian is very very limited so I could not identify the pun in magma. Now I think I know what the pun is, but I don't want to bias your answers, so I ask, what's the intended pun in the verses above?