Linus blows the class rep' election...
... by telling his schoolmates about the 'Great Pumpkin' during the speech, though he aimed at becoming the class representative (= "délégué" in France). Indeed, Linus is probably the most naive character in "The Peanuts" comic strips [by Charles Schulze].
How come Linus started talking about a pumpkin during the election campaign ?? Well... Linus is actually crazy about 'the Great Pumpkin' -which is a character that nobody sees in "The Peanuts"... However, Linus is strongly convinced 'the Great Pumpkin' is real... and continues to search for it !
If you wish to know who 'the Great Pumpkin' is,
<<< Click on the photo
of this pumpkins field
in 'High Moon Bay'
Pumpkins are one of the
symbols of Hallowe'en :
I will tell you more about
it... soon :o)
blow (V) = to spoil, to fail, to mess up with something
schoolmates = the pupils in your school
a pumpkin = a large round vegetable (yellow or orange inside)
which grows on the ground (look at the photo !)
"How come [that]... ?" = "Why... ?" "What are the reasons for... ?"
search for (V) = to look for, to seek (irregular V)