Lyric discussion by Alone_down_here 

Cover art for Candy and a Currant Bun lyrics by Pink Floyd

shakeymango, your friend is right, they wanted to name this song "lets roll another one" but they couldnt because the meaning was to obvious that is was about pot smoking. so the BBC told them they had to change the title and lyrics. it was on the B-side of the arnold layne single and had lyrics like"tastes right if you eat it right"