Skip to main content
Electrical term, Class A/B Amplifier.

A class A/B amplifier is also called a psh/pull amp. Class A/B amplifiers have 2 amps, one to push the speaker out (+), the other to pull it in (-). In guitar amps that use tubes, this means that one tube, a driver tube inverts the signal polarity before it reaches the B side.

A class A amp pushes and pulls the speaker, and thus must do more work. Most commercial (in home) amps (stereo receivers, etc.) are class A amps. Class A/B is generally used in guitar amps over 30 watts, high powered Bass amps, and professional power amps. Class A/B generally delivers the same power at double the impedance. So if an amp gets 100w per side @ 4 ohms, then it will generally get 200w bridged mono @ 8 ohms. This is rarely 100% true in practice.

Class A/B is also called "Bridging" an amp (transistor amps generally).
"Fender Twins use 4 6L6s in a Class A/B circut to deliver 85 w RMS @ 4 ohms... In other words, they's pretty damn clean boss."
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

M.O.A.B Class Bloons

A higher class of bloons. They take multiple hits to pop, and here is the list of them: The M.O.A.B, the B.F.B, the Z.O.M.G, the D.D.T, and the B.A.D.
Person 1: I'm in the late game for the first time, and that's a ton of M.O.A.B Class bloons!
Person 2: Yeah, there is a ton of them. They rarely spawn normal bloons in the late game.

Class A Badass 

A person who is not just a badass, but a class A badass. There are levels of bad assery, a through c, with a being the biggest badass and c barely being a badass.
James Bond is a Class A Badass, while Danny Bonaduce is only a Class C Badass.
Class A Badass by LHASS October 1, 2010

class a bitch 

The biggest bitch of the century. The highest rating of bitch
class a bitch by Skittles_slayer August 9, 2021

Son of a Bitch Second Class

Nickname given to the Curtiss SB2C Helldiver, an American Carrier-based Dive Bomber of World War II. Earned its nickname form frustrated pilots who found its handling characteristics very undesireable. Despite the fact that the Helldiver was better armed and armored, most U.S Navy dive bomber pilots prefered the Helldiver's predecessor, the Dauntless.

ana and a boy in her class 

ana is extremely cute and everyone likes her. all the boys in her class dream of kissing her but no one gets to do this because she is too smart for them
-what? he likes her?
-of course, they are an ana and a boy in her class

bart farts his class to a punishment 

Fart makes a rude bart so he is told offf!

bart farts his class to a punishment
More from Urban Dictionary

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
Ratfucker by Ricky Ramjet November 2, 2017
Word of the Day on November 2, 2026

countrypolitan 

Term used to describe someone who is a mix of both rural (country) and urban (metropolitan) lifestyles/upbringings. He/she is typically equally comfortable in both settings and is able to seamlessly slip back and forth between the two, appreciating the characteristics of each.
That ol' gal of mine drives the 12 lane freeway during the week and a John Deere on the weekends. She likes opra and the Grand Ol' Opry. I love them countrypolitan women.
countrypolitan by MOChick November 7, 2006
Word of the Day on November 1, 2026

Witch Bath 

A bath consisting of a variety of slats, oils, soaps or any other added ingredients such as fruits, milks, herbs or any other spices for health or beautifying benifits.
She brought home alot of stuff and took it to the bathroom. She must be taking a witch bath.
Witch Bath by carnieboy30 October 26, 2020
Word of the Day on October 31, 2026

kinktober 

An excuse for people to write porn with different types of kinks throughout the month of October.

Smut Fanfiction
That chick doesn't write often but when she does, its for Kinktober.
kinktober by Kinkiest July 12, 2018
Word of the Day on October 30, 2026

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
Load more