A movement to reduce the funding of charitable organizations, using means such as legislative measures or philosophical arguments to discourage private charitable donations.
The term is modeled after the concept of "War on X" popularized by several former U.S. presidents, including Lyndon B. Johnson's "War on Poverty" and George Bush's "War on Terror".
"The plan to cut allowable tax deductions for charitable donations makes it appear the government has launched a War on Charity."
"That article about the selfish motives of giving are part of that magazine's War on Charity."
A small slice of pizza, typically received when a larger slice is anticipated. If a full pizza was a pie chart for what people would do if they found a million dollars, this sliver would be representative of the "Donate it to Charity" portion.