Examples:

• Uh... hmm. I don't know why I'm drawing a blank on his last name.
• I'm getting nothing. I'm drawing a blank on this guy.
• Now, remind me, 'cause I'm drawing a blank here.
• I know him, I'm just drawing a blank right now.
• The techs are drawing a blank too.
• I'm trying to write but just drawing a blank.
• I'm getting nothing. I'm drawing a blank on this guy.
• I'm drawing a blank here. I haven't had my coffee yet.
• I'm sorry, I'm drawing a blank.
• The techs are drawing a blank too.