To have a retarded face, or expression causing others to find it funny, creepy or just plain stupid.
Ex. 1 Jennifer Lawrence is the queen of derp because of the faces she makes.

Ex. 2 "I'm bored."
"Me too."
*Awkward silence.*
"Derp."
"Yeah..."

Ex. 3 Jennifer Lawrence Queen of Derp trended on Twitter worldwide. (FACT)
by Swim-on-and-on-and-on.... September 07, 2012

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1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
1)Some one who is a either a retard or stupid looking

2) Something random to say in a awkward situation
Look at that guy being a derp.

That derp is giving me eye cancer from looking at him.

Person: I'm Bi

Person 2: DERP
by Moosic June 10, 2016

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug