A chance or guess that you take with something important. If you have ever guessed on a test, or just lied to your family or friends, congratulation you have taken a gandar!
James: Hey man let’s go do drugs
David: nah man that sounds bad
James: Lets take a gandar
David: oh ok!
used along with the words 'wos' (what's, what is), the whole phrase meaning 'how's it going? / how's it hanging'. The phrase was coined by Big Mo, safe brare yeh, but we don't talk to him anymore unfortunately. Phrase should be said in a silly voice, and a bit hyperactively also. Bigup the Epsom massive yeh?
Big Mo: Wos gwandarisin Tommy Gunz?
T.G: LaCartes, innitrt?
Scams originating in West African countries usually involving fraud or identity theft via the Internet, due to corruption on the part of government officials in those countries and a general acquiescence on the part of the same officials to do anything about said scams.
One of the worst things that can happen on the Internet involves what I call Ghanarrhea. The symptoms include an abnormal flow of funds from your pocket into the pockets of these email scammers in Ghana.