"I went hiking with Joe Spivy;
He developed poison ivy.
You remember Lynyrd Skynyrd;
He got ptomaine poisoning last night after dinner."

The story:

Heard this one Summer 20 years ago- =1990= -when
the D.J. was running the "Best Top 40 Songs Ever
For Summer", & he invited the listening audience
to submit song suggestions, & one caller said
"Camp Granada" by comedic songster Allan Sherman;
never really heard the 1963 tune in its entirety,
only played the Milton Bradley game, & was also a
fan of "Camp Runamuck", the 1965-6 sitcom starring
Arch Johnson that seemed to be based on "Granada"
as well, at age 9.
You notice a commonality here?
All things "camp".
Anyway, it's 1990, & am listening w/ some buds to
Allan's dulcet tones & the line comes on about,
"...You remember Lynyrd Skynyrd; He got ptomaine
poisoning late night after dinner...", and we
started coughing & laughing until milk came out of
our noses - & we weren't even drinking any MILK!
So I started raving that the group "Lynyrd
Skynyrd" copped their name off of this song, & the
crew agreed it this was so.
Until that is, a pal who was a REAL Lynyrd Skynyrd
'nyrd' told us that they didn't take it off of the
1963 Allan Sherman song, but off of their
High(!)School Gym Teacher who forced the boys w/
long locks to wear hairnets much like the one
school cafeteria workers or Ruth Buzzi as "Gladys
Ormphby" on "Rowan & Martin's Laugh-In" did, which
naturally the guys balked at.
He wanted to humiliate & shame them to cut off
their hair.
The name of the Phys. Ed. Coach:
Leonard Skinner -just like in the "Camp Granada"
song after all!
In fact the disgruntled Skinner, w/ the same name
as the Principal on "The Simpsons" & "The X Files"
FBI boss, threatened to sue the band if they used
his name, so they altered it so the tale goes, to
not only protect themselves against litigation,
but also partly as a tribute to The Byrds, hence
all the "y"'s.
So now you know "Y" Lynyrd Skynyrd.
A mudder always eats its fodder....