(adj.) For a potential product to be seen as one with a very short lifespan, low sales and tiny fanbase.
Japanese language playstation games based on animes that are not shown in the USA or Europe wouldn't last a heartbeat there. See Bastard!!
by Gumba Gumba May 25, 2004

there goes someone's heartbeat you are the reason. For him you are a beautiful angel. For him, he love you to the square of infinity. - onyx
there goes someone's heartbeat you are the reason. For him you are a beautiful angel. For him, he love you to the square of infinity. - onyx
by _Onyx November 23, 2021

Person 1: Oh shit I got predicted. Also, almost everyone mistakes my girls for guys! Ugh, life is pain.
Person 2: Don't worry, that's just the Heartbeat Effect
Person 2: Don't worry, that's just the Heartbeat Effect
by Infinityhero99 October 12, 2019

Refers to the pelvic floor contracting when the penis undergoes stimulation, the contracting movement results in the said term.
Janice : I'm not gonna stop edging you
Ian : Janica, wait! Its twitching!
Janice : What's twitching?
Ian : My dick! Argh, it sounds like my heart beating
Janice : Genital heartbeat!
Ian : Janica, wait! Its twitching!
Janice : What's twitching?
Ian : My dick! Argh, it sounds like my heart beating
Janice : Genital heartbeat!
by ref_urband September 30, 2024

a moon shine chick or actually male heart throb that has dis luna feats and adds a sappy look with dark features. and happens to be emotionally adequate and a sweet smite .
the Twilight movies are full of luna heartbeats. I'd get me sum but am not sure if she's smite me with sum dis luna slight.
by aromabinger November 25, 2024

by PRIME ASSHOLE April 17, 2021

When your been starts pulsing from being sexually aroused
by Slicklick$ August 31, 2023
