The contracted form of the phrase "come on". Eliminating the space between the two words, the letter "e" and substituting the "o" in "come" with an apostrophe. 
Generally used to encourage one to hurry up or follow in one's path.
Generally used to encourage one to hurry up or follow in one's path.
by -------------- August 29, 2005
 Get the c'monmug.
Get the c'monmug. by MrRaoul July 21, 2008
 Get the c'monmug.
Get the c'monmug. A term revamp in phila,pa on the block of 21 and conlyn. To let those in the around that the someone is telling a lie or talking some fraudulent bull shit.
by Klus  April 13, 2017
 Get the c'monmug.
Get the c'monmug. Alternate spelling: Come on then
A popular phrase amongst chavs and their ilk. A less formal way of saying "good sir, I believe you have wronged me, and I hereby challenge you to a match of strength to determine which one of us is the superior fighter."
A popular phrase amongst chavs and their ilk. A less formal way of saying "good sir, I believe you have wronged me, and I hereby challenge you to a match of strength to determine which one of us is the superior fighter."
Chav 1: *Walks into Chav 2*
Chav 2: What the fuck you doin', blad! You fuckin' startin', like?!
Chav 1: C'mon then bruv, I'll shank you 'ardcore like!
Chav 2: What the fuck you doin', blad! You fuckin' startin', like?!
Chav 1: C'mon then bruv, I'll shank you 'ardcore like!
by Nitemarish October 4, 2009
 Get the C'mon thenmug.
Get the C'mon thenmug. by eves June 18, 2006
 Get the C'monmug.
Get the C'monmug. 