The craic is mighty. Irish slang is storytelling in miniature, every expression sounds like it belongs in a pub tale. Grand, deadly, gas, the Irish make three words do the work of thirty.
"Boke"
"Your heart out. A phrase added after a verb to indicate that that action is being done with the most effort possible. Alright man, your time slot's almost up. You ready? Oh yeah, I'm ready man. My voice is feeling good. Alright, perfect. Now get up on stage and sing your fucking heart out, man."
"Yammering, the act of talking on and on about unimportant stuff that nobody cares about. Yeah, man, I'm totally cool, man, I'm totally cool. I could down five beers, no, ten beers without passing out, promise you. What are you yammering on about? No one cares, man."
"Built like a brick shithouse. Something you say about someone who is very jacked, built, buff, just very muscular and big. You think that guy Daryl hits the gym? Yeah, of course he hits the gym, look at him, he's built like a brick shithouse."
"Shitfaced, meaning incredibly drunk. Alternatively, you can also say wasted. Whew, what's got you all drowsy this morning? Oh man, you have no idea. Last night I went to a party and got completely shitfaced."