When I wrote the poem I imagined 'Jim' coming home in the early hours of the morning, a few 'cones' inside him, and not really wanting to hear the old man going off his tree again. He anticipates his father's wrath and pre-empts it with his refrain, […]
1994, Tom Wells, The War Within: America's Battle Over Vietnam, iUniverse (2005), →ISBN, page 391:
"These guys were off their tree," David Hawk recalled. At one point, a VMC activist asked the Weathermen what they were really after. "To kill all rich people," Ayers replied.
2010, Anouchka Grose, Why Do Fools Fall in Love: A Realist's Guide to Romance, Tin House Books (2011), →ISBN, page 92:
But after her wedding he goes completely off his tree, runs off into the wilderness and starts ranting in verse and writing poems in the sand with a stick.
2010, Paul Worstelling & Jack Crowley, Fishing Western Port, Australian Fishing Network (2010), →ISBN, page 12:
Anglers in the UK would go off their tree if they could experience the gummy fishery that we take for granted.