The Collaborative International Dictionary
Giffgaff
Giffgaff \Giff"gaff\, n. [Reduplicated fr. give.] Mutual accommodation; mutual giving. [Scot.]
Wikipedia
Giffgaff
Giffgaff (stylized "giffgaff") is a mobile telephone network running as a Mobile Virtual Network Operator ( MVNO) using the United Kingdom O2 network. Owned by O2's owners Telefónica, Giffgaff was launched on 25 November 2009.
Usage examples of "giffgaff".
He was for issuing forth to vociferate and slap members upon their backs and jovially arrange committeeships on the giffgaff principle of give us the Speakership and you shall become a Chairman.