Wiktionary
off the charts
adv. Outside of the normal range of measurement; beyond expectations. alt. Outside of the normal range of measurement; beyond expectations.
Wikipedia
Off the Charts
Off the Charts is the second full album by The Briefs, released in both the US and the UK in 2003 on CD, and gatefold and white vinyl. The song "(Looking Through) Gary Glitter's Eyes" is a nod to a song by The Adverts entitled "Gary Gilmore's Eyes".