A bump on skin similar to a boil
I have a riser on my arm.
by usedwords February 17, 2010

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Top Definition
The riser an unwanted boner that becomes erect at a slow, even pace. Some experts maintain that the riser can be combated by thinking of fishing, baseball, your naked grandmother, etc. There has never been a documented cure for the onset of a riser.
I was waiting to check out at the grocery store, and I got a riser out of nowhere.
by The Sandwich Maker September 09, 2010

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the spontaniuous rising of the penis, due usually to sexual arousment
When she leaned in to kiss him, she felt his riser against her leg.
by paigeness March 25, 2005

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There are many proper definitions for the word riser.

As a noun.
1. A person who rises, esp. from bed: to be an early riser.

2. The vertical face of a stair step.

3. Any of a group of long boards or narrow platforms that can be combined in stepwise fashion: The choir stood on a horseshoe of risers behind the orchestra.

4. A vertical pipe, duct, or conduit.

5. Metallurgy. a chamber or enlarged opening at the top of a mold for allowing air to escape or adding extra metal.

As a adjective.
1. Advancing, ascending, or mounting.

2. Growing or advancing to adult years.

As an adverb.
1. Somewhat more than.

2. In approach of; almost; well-nigh.
Example for #3 as a noun: The choir stood on a horseshoe of risers behind the orchestra.

Example for #1 as a adjective: Rising smoke.

Examples for #1 & #2 as a adverb are below.

#1: The crop came to rising 6000 bushels.

#2: A lad rising sixteen.
by Maux Darkbrand June 13, 2009

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