The only contraction that is of 4 words, "I am going to." Either that or a contraction of 2 contractions, "I'm gonna." (1.)
Not to be confused with "I'm a..." (2.)
Not to be confused with "I'm a..." (2.)
by Slightly Off The Ground January 9, 2009
Get the I'mmamug. 
by Punkybrewer March 18, 2010
Get the I'mmamug. (Conjunction)
A conjunction of the two seperate conjunctions "I'm gonna" or "I'm going to" used as slang in text messages. Typically, in texting, the apostrophe is left out for a faster typing speed, but spelled correctly it does have the apostrophe.
A conjunction of the two seperate conjunctions "I'm gonna" or "I'm going to" used as slang in text messages. Typically, in texting, the apostrophe is left out for a faster typing speed, but spelled correctly it does have the apostrophe.
by Gerold xd April 23, 2019
Get the I'mmamug. When you sit in front of someone with downs for 4 years and every morning he taps you on the shoulder to tell you he's a cop.
by P MIF February 19, 2010
Get the I'mma copmug. by Miss Mew-Mew January 16, 2015
Get the I'mma-kill-a-bitchmug. "I'm going to let you finish, but..."
A phrase that one would say in the process of interrupting, upstaging and detracting from another person's shining moment.
A phrase that one would say in the process of interrupting, upstaging and detracting from another person's shining moment.
Older lady (holding a baking sheet full of buttermilk biscuits): "These are all handmade, like my mom used to-"
Enter unruly nephew: Auntie, those are some great biscuits - I-I'm really happy for you, I'mma let you finish, but Grandma had some of the best biscuits of all time - some of the best biscuits of all time!!
Older lady: You need your ass whipped - go get me a switch!
Dude 1: 'Man this girl was so hot - she had a drink in her hand and was walking over to me at the other end of the ba-'
Dude 2: 'I'mma let u finish, but she was the ugliest girl of all time!'
Dude 1: Thanks, douche.
Enter unruly nephew: Auntie, those are some great biscuits - I-I'm really happy for you, I'mma let you finish, but Grandma had some of the best biscuits of all time - some of the best biscuits of all time!!
Older lady: You need your ass whipped - go get me a switch!
Dude 1: 'Man this girl was so hot - she had a drink in her hand and was walking over to me at the other end of the ba-'
Dude 2: 'I'mma let u finish, but she was the ugliest girl of all time!'
Dude 1: Thanks, douche.
by tehbaconator September 16, 2009
Get the I'mma let you finish, butmug.