Definition of "giffgaff" [giff•gaff]

• Mutual accommodation; mutual giving. (noun)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "Well this doesn't happen too often in the crowded space that is the UK Mobile market - a new Operator is launching, called giffgaff:"
• "The online SIM-only offer called giffgaff will aim to capitalise on the trend towards online content creation."
• "The brand "giffgaff", which is due to launch before Christmas, offers a SIM only tariff and a range of online tools that allows members to create user-generated marketing campaigns and vote on various business decisions."