a bunch of baloney
Falsehoods, nonsense, or foolishness. Baloney in this sense might have originated from the word "blarney," which means flattering or nonsensical talk; more usually it refers to bologna sausage, which is blended from different meats, therefore implying content of inferior or dubious quality. Primarily heard in US. You're going to give me $5,000 if I sign the lease today? What a bunch of baloney.
a bunch of malarkey
Exaggerated, foolish, or untruthful talk; nonsense or falsehoods. Personally, I think the notion of "love at first sight" is a bunch of malarkey.
bad bunch
A group of people typified by immoral, illegal, or illicit behavior, which is often seen as being corruptive and/or destructive to others. My brother was a straight-A student until he started hanging out with a bad bunch; now he's hooked on drugs and has dropped out of school.
best of the bunch
The most excellent, ideal, desirable, or preferable person or thing within a given group. There were several cars on display that caught my eye, but this one is definitely the best of the bunch. Mary hangs out with many talented and intelligent kids, but to me, she will always be the best of the bunch.
get (one's) panties in a bunch
To become overly upset or emotional over something, especially that which is trivial or unimportant. Primarily heard in US, South Africa. Ah, don't get your panties in a bunch, I'll have the car back by tomorrow morning! In my opinion, people are getting their panties in a bunch over this election.
it takes one bad apple to spoil the (whole) bunch
It only takes one person, thing, element, etc., to ruin the entire group, situation, project, etc. Refers to the fact that a rotting apple can cause other apples in close proximity to begin to rot as well. A: "It used to be considered the top research facility in the region, but after one of its researchers was discovered to have plagiarized a number of his papers, the whole department's reputation has been dragged through the mud." B: "Well, it takes just one bad apple to spoil the bunch." I really loved my job, but there was this one jerk there who made life miserable for everyone. It takes one bad apple to spoil the whole bunch, unfortunately.
one bad apple spoils the (whole) bunch
It only takes one person, thing, element, etc., to ruin the entire group, situation, project, etc. Refers to the fact that a rotting apple can cause other apples in close proximity to begin to rot as well. A: "It used to be considered the top research facility in the region, but after one of its researchers was discovered to have plagiarized a number of his papers, the whole department's reputation has been dragged through the mud." B: "Well, just one bad apple spoils the bunch." I really loved my job, but there was this one jerk there who made life miserable for everyone. One bad apple spoils the whole bunch, unfortunately.
pick of the bunch
The best or most ideal option in a group. Matt is the pick of the bunch, so we need to make sure he ends up on our team. I know you think that puppy is too small, but to me he's just the pick of the bunch!